Find the inverse of f(x) = 3x +8
Function Operations Compositions and Inverses

Quiz
•
Mathematics
•
11th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
f-1(x) = 3(x-8)
f-1(x) = (8x-1)/3
f-1(x) = (x-8)/3
f-1(x) = (x+8)/3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given
f(x) = 3x2 + 7x and g(x) = 2x2 - x - 1, find (f + g)(x).
11x2 - 1
5x4 + 6x2 - 1
5x2 + 6x - 1
5x2 + 8x - 1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
f(x) = x2+9
g(x) = x-9
Find (f-g)(x).
x2+x+9
x2-x+9
x2-x
x2-x+18
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given f(x) = 2x - 5 and g(x) = x2 − 4x + 5 What is (g-f)(x) =
x2-6x+10
-x2+6x-10
x2-6x
-x2-2x
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Let f(x) = 2x - 1, g(x) = 3x, and h(x) = x2 + 1. Compute: g(f(0))
-3
-1
6x - 3
x2 + 1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
p(x) = 3x + 4
q(x) = 2x2
Find q(p(x))
6x2 + 4
18x2 + 48x + 32
18x2 + 32
None of these.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the inverse of f(x) = -4x - 12
f-1(x) = 4x - 3
f-1(x) = -1/4x - 3
f-1(x) = 1/4x + 3
f-1(x) = -4x - 3
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