{"id":9438,"date":"2017-04-11t12:54:18","date_gmt":"2017-04-11t19:54:18","guid":{"rendered":"\/\/www.catharsisit.com\/hs\/?p=9438"},"modified":"2017-04-11t12:54:18","modified_gmt":"2017-04-11t19:54:18","slug":"practice-calculus-problems","status":"publish","type":"post","link":"\/\/www.catharsisit.com\/hs\/ap\/practice-calculus-problems\/","title":{"rendered":"practice calculus problems for the ap calculus ab exam"},"content":{"rendered":"<p>there is no such thing as doing too many practice calculus problems\u00a0when studying for the ap exam. it is important no matter what stage in ap calculus preparation you are at. going through practice problems will remind you of the possible topics that could be on the exam. it helps you gain confidence since many similar problems repeat themselves year after year (not the same problem, but similar types of problems). and learning the subject in theory, without ever working through examples, is rarely enough to truly understand how concepts can be implemented. the absolute best sources for problems is actual past ap exams. the college board provides a few older exams, and you can buy college board books that have others as well.<\/p>\n<h2>practice calculus problems<\/h2>\n<p>below is a smattering\u00a0of different types of problems from across the ap calculus ab curriculum. you need to be familiar with these concepts for the <a href=\"\/\/www.catharsisit.com\/hs\/ap\/ap-calculus-bc-exam-multiple-choice-practice-problems\/\">multiple choice<\/a> and <a href=\"\/\/www.catharsisit.com\/hs\/ap\/ap-calculus-bc-exam-free-response-practice-problems\/\">free response<\/a> sections of the exam. a calculator is not needed for any of these problems.<\/p>\n<h3>full solutions are given below.<\/h3>\n<h2>calculus practice problems<\/h2>\n<p>1.<img decoding=\"async\" class=\"alignnone size-full wp-image-9439\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.11-pm.png\" alt=\"practice calculus problems\" width=\"200\" height=\"39\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>2. find <img decoding=\"async\" class=\"alignnone size-full wp-image-9440\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.23-pm.png\" alt=\"\" width=\"83\" height=\"46\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>3. let us take the function<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9441\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.30-pm.png\" alt=\"\" width=\"175\" height=\"28\" \/><\/p>\n<p>when x = 4, is the function increasing or decreasing? is the function concave up, or concave down?<\/p>\n<p>&nbsp;<\/p>\n<p>4. a ball is thrown. the height of the ball in meters at any given time can be found by the function<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9442\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.35-pm.png\" alt=\"\" width=\"167\" height=\"28\" \/><\/p>\n<p>where t is in seconds.<\/p>\n<p>a) at what moment has the ball reached its highest point?<br \/>\nb) what is the acceleration of the ball at this point?<\/p>\n<p>&nbsp;<\/p>\n<p>5. a particle moves in a straight line with the velocity given by the equation<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9443\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.42-pm.png\" alt=\"\" width=\"118\" height=\"26\" \/><\/p>\n<p>what is the total displacement between 0 seconds and 4 seconds?<\/p>\n<p>6. <img decoding=\"async\" class=\"alignnone size-full wp-image-9444\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.51-pm.png\" alt=\"\" width=\"187\" height=\"31\" \/><\/p>\n<p>find r.<\/p>\n<p>&nbsp;<\/p>\n<p>7. find the area enclosed by the graphs of<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9445\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.31.59-pm.png\" alt=\"\" width=\"151\" height=\"25\" \/><\/p>\n<h2>solutions:<\/h2>\n<p>1. <img decoding=\"async\" class=\"alignnone size-full wp-image-9446\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.06-pm.png\" alt=\"\" width=\"225\" height=\"121\" \/><\/p>\n<p>2. if we plug in x=0 into the equation, we get a 0 in the denominator. if the expression had evaluated to a real number, the problem would be done. this is not the case here.<br \/>\nour best approach would be to use <a href=\"\/\/www.catharsisit.com\/hs\/ap\/what-is-lhospitals-rule\/\">l\u2019hopital\u2019s rule<\/a>. take the derivative of the top and bottom, and then evaluate the integral.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9447\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.09-pm.png\" alt=\"\" width=\"252\" height=\"70\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>3. to find where a function increases or decreases, we need to take the derivative<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9448\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.15-pm.png\" alt=\"\" width=\"179\" height=\"66\" \/><\/p>\n<p>at x = 4, this evaluates to 26, so this function is increasing at that point.<\/p>\n<p>&nbsp;<\/p>\n<p>to determine concavity, let&#8217;s take the second derivative<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9449\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.19-pm.png\" alt=\"\" width=\"181\" height=\"77\" \/><\/p>\n<p>therefore, the function is concave up. since we could look at the initial equation and see that it is an upward facing parabola, we could answer this part without actually taking the derivative but rather by knowing that a parabola\u2019s concavity is always either upward and downward (depending on which way the parabola faces.)<\/p>\n<p>4. to find the moment the ball reaches it highest point, we are looking for the moment the velocity is zero. to find this, take the derivative at set it to 0.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9450\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.25-pm.png\" alt=\"\" width=\"125\" height=\"97\" \/><\/p>\n<p>the ball reaches its highest point at t = 4\/10 seconds.<\/p>\n<p>the acceleration of the ball at this point is the double derivative of this equation.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9451\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.31-pm.png\" alt=\"\" width=\"163\" height=\"68\" \/><\/p>\n<p>the acceleration is a constant -10 m\/s.<\/p>\n<p>&nbsp;<\/p>\n<p>5. the displacement of a particle can be found by evaluating the integral between the two times given.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9452\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.36-pm.png\" alt=\"\" width=\"255\" height=\"81\" \/><\/p>\n<p>this evaluates to<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9453\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.39-pm.png\" alt=\"\" width=\"216\" height=\"59\" \/><\/p>\n<p>6.<\/p>\n<p>we need to evaluate the integral<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-9454\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.44-pm-300x81.png\" alt=\"\" width=\"300\" height=\"81\" srcset=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.44-pm-300x81.png 300w, \/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.44-pm.png 338w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>therefore, if we solve this, we find that r = 1.<\/p>\n<p>&nbsp;<\/p>\n<p>7.<\/p>\n<p>&nbsp;<\/p>\n<p>anytime we are looking for the area under a curve, we are looking for an indefinite integral. however, in this case, we also need to know the end points. this is where the two graphs cross.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9456\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.57-pm.png\" alt=\"\" width=\"131\" height=\"30\" \/><\/p>\n<p>we find that x = 0 or x = 1, our endpoints.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-9455\" src=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.51-pm-300x109.png\" alt=\"\" width=\"300\" height=\"109\" srcset=\"\/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.51-pm-300x109.png 300w, \/\/www.catharsisit.com\/hs\/files\/2017\/03\/screen-shot-2017-03-14-at-8.32.51-pm.png 345w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>check out our practice calculus problems with full solutions to help you review for the ap calculus ab exam in this post!<\/p>\n","protected":false},"author":224,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[240],"tags":[241,275],"ppma_author":[24930],"acf":[],"yoast_head":"<!-- this site is optimized with the yoast seo premium plugin v21.7 (yoast seo v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>practice calculus problems for the ap calculus ab exam - magoosh blog | high school<\/title>\n<meta name=\"description\" content=\"check out our practice calculus problems with full solutions to help you review for the ap calculus ab exam in this post!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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