Final answer:
The value of x in the function f(x) = 1/2x - 2 is -12.
Step-by-step explanation:
To find the value of x in the function f(x) = 1/2x - 2, we substitute the given y-coordinate (-8) into the equation and solve for x. Let's set f(x) equal to -8:
-8 = 1/2x - 2
Adding 2 to both sides, we get:
-6 = 1/2x
Multiplying both sides by 2, we find:
x = -12
Therefore, the value of x is -12.