if f(x)=-x+3 find f(-3)
If f (x) = -x + 3Then f (-3) = -(-3) + 3f (-3) = 3 + 3f (-3) = 6Hope this helps!
F of x=6 f(x)=-(-3)+3 negative times a negative equals a positive. so the negative cancels out so 3+3=6