What is the value of the function y=18x−13 when x=−4 ?

Question

A. −16

B. −12.5

C. −15

D. −13.5

Answer 1

To find the value of the function when x = -4, simply plug in -4 for x in the function and solve:

y = 18(-4) - 13
y = -72 - 13
y = -85

Therefore, the value of the function y = 18x - 13 when x = -4 is -85.

None of the provided options (A. -16, B. -12.5, C. -15, D. -13.5) are correct.