Combining functions Quiz
10 questions · easy to harder · Algebra 2 · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 2 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
f(x) = 2x + 1, g(x) = x − 3, find (f + g)(x)Type the answer.
2 Question 2
f(x) = x + 5, g(x) = 2x − 1, find (f + g)(x)Type the answer.
3 Question 3
f(x) = x2, g(x) = 3x, find (f + g)(1)- A) 4
- B) 1
- C) 3
4 Question 4
f(x) = x + 4, g(x) = 2x, find (f × g)(x)Type the answer.
5 Question 5
f(x) = 2x + 1, g(x) = x − 3, find (f − g)(x)Type the answer.
6 Question 6
f(x) = x2 + 3x, g(x) = x2 − 1, find (f − g)(x)Type the answer.
7 Question 7
f(x) = x + 2, g(x) = x − 3, find (f × g)(x)Type the answer.
8 Question 8
f(x) = 2x + 1, g(x) = x − 3, find (f × g)(x)Type the answer.
9 Question 9
f(x) = x2 − 2x, g(x) = 3x − 4, find (f − g)(x)- A) x2 + 5x + 4
- B) x2 − 5x − 4
- C) x2 − 5x + 4
- D) x² − 5x − 4
10 Question 10
f(x) = x2 + 1, g(x) = x2 − 4x, find (f + g)(x)Type the answer.