find each of the following

Question

Given the function f(x)=x^2-x+10 find each of the following f(3), f(-8), f(0)

Answer 1

The function is f(x)  =  x^2 - x + 10  find each of the following 

1)

f(3)

Substitute x = 3 in f(x)

f( 3 )   =  (3)^2 - (3) + 10 

          =  9 - 3 + 10

​          =  19 - 3

​          =  16

2)

f(-8)

Substitute x = -8 in f(x)

f(-8)  =  (-8)^2 - (-8) + 10

        =  64 + 8 + 10

        =  82

3)

f(0)

Substitute x = 0 in f(x)

f(0)  =  (0)^2 - (0) + 10

       =  0 - 0 + 10

       =  10

Answer :

1)  f(3)  =  16

2)  f(-8)  =  82

3)  f(0)  =  10.