What is the value of the function y= 1/8x-13 when x=-4?
To find the value of the function y = 1/8x - 13 when x = -4, substitute -4 for x in the equation:
y = 1/8(-4) - 13
y = -1/2 - 13
y = -13.5
Therefore, the value of the function when x = -4 is y = -13.5.