### Home > CAAC > Chapter 11 > Lesson 11.1.2 > Problem 11-21

11-21.

Substitute 1 for *x*.

f(1) = 1^{2} = 1

Substitute −3 for *x*.

f(−3) = (−3)^{2} = 9

See parts (a) and (b).

11-21.

Substitute 1 for *x*.

f(1) = 1^{2} = 1

Substitute −3 for *x*.

f(−3) = (−3)^{2} = 9

See parts (a) and (b).