An ordered pair is (x, y). x is the independent variable, and y is the dependent variable. y is the dependent variable because it is is dependent on the value of x.
f(x) is the same as y.
If the independent variable is -1/2 then that means the value of x is -1/2
So far we know
(-1/2, y)
That means we plug in x = -1/2 and solve for y
f(x)= 12x² - 8x
f(-1/2) = 12(-1/2)^2 - 8(-1/2)
f(-1/2) = 12(1/4) - 8(-1/2)
f(-1/2) = 3 - (-4)
f(-1/2) = 3 + 4
f(-1/2) = 7
The dependent variable is 7.
The ordered pair is (-1/2, 7)
Your final answer is B.
