What is the value of the function y = 1/8 13 when x = -4?
A. -13.5
B. -16
C. -12.5
D. -15
To find the value of the function y = 1/8x + 13 when x = -4, we substitute x = -4 into the equation:
y = 1/8(-4) + 13
y = -1/2 + 13
y = -1/2 + 26/2
y = (25-1)/2
y = 24/2 = 12
The value of the function when x = -4 is 12.
Therefore, none of the given options is correct.