Question

F(x)= x^2 - 2x + 7
Find F(-1)

Answer 1

f(- 1) = 10

Explanation:

Substitute x = - 1 into f(x) , that is

f(- 1) = (- 1)² - 2(- 1) + 7 = 1 + 2 + 7 = 10

Answer 2

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

Explanation: