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, we substitute x = -4 into the equation:
y = 1/8(-4) - 13
y = -1/2 - 13
y = -1/2 - 26/2
y = -27/2
Therefore, when x = -4, the value of the function y = 1/8x - 13 is -27/2 or -13.5.
To find the value of the function y = 1/8x - 13 when x = -4, we can substitute the value of x into the function and calculate y.
Substituting x = -4 into the function, we have:
y = 1/8(-4) - 13
To simplify further, we multiply 1/8 by -4:
y = -1/2 - 13
Now, we add -1/2 to -13:
y = -1/2 - 13 = -1/2 - 26/2 = -27/2
Therefore, when x = -4, the value of the function y = 1/8x - 13 is -27/2.