To find the value of the function y = (1/8)x - 13 when x = -4, substitute -4 in place of x in the equation:
y = (1/8)(-4) - 13
= -4/8 - 13
= -1/2 - 13
= -1/2 - 26/2
= -27/2
≈ -13.5
Therefore, the value of the function is approximately -13.5. The correct option is 13.5.
What is the value of the function y= 1/8x-13 when x=-4?
13.5
-15
-12.5
-16
1 answer