Given the function f(x) = 2x² − 5, what is the value of f(-4)?

A. -37
Incorrect. (-4)^2 = 16, not -16.

B. -21
Incorrect. (-4)^2 = 16, not -8.

C. 11
Incorrect. (-4)^2 = 16, not 8.

D. 27
Correct!

If f(-3) = 12, which of the following best represents f(n)?

A. f(n) = n² + 3
Correct!

B. f(n) = 2n²
Incorrect. 2(-3)^2 = 18, not 12.

C. f(n) = 4n
Incorrect. 4(-3) = -12, not 12.

D. f(n) = 2n + 6
Incorrect. 2(-3) + 6 = 0, not 12.

A function is described by f(x) = 5x − 3 with input values of {-3, -1, 0, 2, 5}, which of the following is a corresponding output value?

A. 12
Incorrect. 5(-3) = -15 not 15.

B. 7
Correct! f(2) − 3 = 10 − 3 = 7

C. 2
Incorrect. 5(0) = 0 not 5.

D. 25
Incorrect. You still need to subtract 3 from the product of 5(5).

Given the function f(x) = x² -5x + 3, what is the value of f(-3)?

A. -3
Incorrect. -5(-3) = 15, not -15.

B. -6
Incorrect. (-3)^3 = 9, not 6 and (-5)(-3) = 15

C. 24
Incorrect. (-3)^2 = 9, not 6.

D. 27
Correct!