What is the value of the function y=18x−13 when x=−4 ?(1 point)

Question

Responses

−12.5
negative 12.5

−13.5
negative 13.5

−16
negative 16

−15

Answer 1

To find the value of the function when x = -4, we substitute -4 for x in the equation y = 18x - 13:

y = 18(-4) - 13

y = -72 - 13

y = -85

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

Answer 2

What is the value of the function y=1/8x−13 when x=−4 ?(1 point)
Responses

−12.5
negative 12.5

−13.5
negative 13.5

−16
negative 16

−15

Answer 3

To find the value of the function when x = -4, we substitute -4 for x in the equation y = (1/8)x - 13:

y = (1/8)(-4) - 13

y = -1/2 - 13

y = -13.5

So, the value of the function y = (1/8)x - 13 when x = -4 is -13.5.