Question

use the graph of the function f shown to answer parts (a)-(n). (a) find f(-21) and f(-9). f(-21)= f(-9)=

Explanation:

Step1: Locate x = -21 on graph

Find the y - value at x=-21. The point on the graph is (-21, - 2). So f(-21)=-2.

Step2: Locate x = -9 on graph

Find the y - value at x = - 9. The point on the graph is (-9,3). So f(-9)=3.

Answer:

f(-21)=-2
f(-9)=3