Question

i got question A &B i just can’t get C

Answer 1

Step 1

The domain refers to all values that go into a function. The range refers to all the values that come out.

Step 2

Find the domain

$D=\mleft\lbrace2007,2008,2009\mright\rbrace$

Step 3

Find the range

$R=\mleft\lbrace234300,213200,\text{ 212,200}\mright\rbrace$