what is the value of the function y=1/8x - 13 when x = -4?
To find the value of the function y = (1/8)x - 13 when x = -4, substitute the value of x into the expression for y:
y = (1/8)(-4) - 13
Evaluate:
y = (-4/8) - 13
Simplify:
y = -1/2 - 13
y = -1/2 - 26/2
y = -27/2
Therefore, the value of the function y = 1/8x - 13 when x = -4 is -27/2.