Concavity and inflection points Quiz
10 questions · easy to harder · Calculus 1 · score and step-by-step answers
How it works
- 10 questions, about 30 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 0 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Concavity and inflection points of f(x) = x3 − 3x2Type the answer.
2 Question 2
Concavity and inflection points of f(x) = x3 − 3xType the answer.
3 Question 3
Concavity and inflection points of f(x) = −x3 + 6x2Type the answer.
4 Question 4
Concavity and inflection points of f(x) = x3 − 6x2 + 9x + 1Type the answer.
5 Question 5
Concavity and inflection points of f(x) = x3 − 9x2 + 24xType the answer.
6 Question 6
Concavity and inflection points of f(x) = −x3 + 3x2 + 4Type the answer.
7 Question 7
Inflection points of f(x) = x4 − 6x2Type the answer.
8 Question 8
Inflection points of f(x) = x4 − 6x2 + 5Type the answer.
9 Question 9
Inflection points of f(x) = x4 − 4x3Type the answer.
10 Question 10
Inflection points of f(x) = x4 + 4x3Type the answer.