4
QuizMultiple Choice

Relations and Functions — Quiz

Question 4 • College Readiness Mathematics

In which function is x is equal to 2 mapped to 32 ?

Answer
A
g of x is equal to 4 times open paren x plus 3 close paren squared minus 68
B
f of x is equal to negative 3 x squared minus 4
C
f of x is equal to 2 x minus 62
D
h of x is equal to 3 x

Explanation

Substitute x = 2 into each function. For choice A, g(2) = 4(2 + 3)² − 68 = 4(25) − 68 = 32. The other choices give −16, −58, and 6, so choice A, g(x) = 4(x + 3)² − 68, maps 2 to 32.

AI-written and checked against the verified answer.

Previous
Next