Answer:f(1)=-4, f(1)=1
Just substitute the value to the x, Like this.
F(x)=x²+2x-7
F(1)=(1)²+2(1)-7
=1+2-7
=3-7
=-4
Step-by-step explanation:
Answer:
f(- 1) = 10
Step-by-step explanation:
Substitute x = - 1 into f(x) , that is
f(- 1) = (- 1)² - 2(- 1) + 7 = 1 + 2 + 7 = 10
