Find f (-3) if f (x) = x^2

A - - 9

B - - 6

C - 6

D-9

D. 9

Step-by-step explanation:

First, plug in - 3 for the value of x in your function. You will get

f (-3) = (-3) ^2

The square of any real number is always positive. Thus, (-3) ^2 = (-3) * (-3), or 9.

I agree with the above method, f (-3) which from the form of f (x), in which the x is where you plug into the rest of the equation which x^2. So (-3) ^2 and will become positive, usually the parenthesis is indication it will be positive once squared.