1. It is a relation where each element in the domain is related to only one value in the range by some rule.

• Relation

• function

• rational function

• one-to-one function

Evaluate f(x) = 4x+1 at x=5.

• f(x)= 10

• f(x)= 14

• f(x)= 21

• a. f(x)= 30

If f(x)=4^x, evaluate f(2).

• f(2)=8

• f(2)=16

• f(2)=4

• f(2)=2

The following are rational functions, except:

• y=x²+2x+3

• y= x+4/x+1

• y= 2x+1/x-1

• y=1/x

1.Find the sum of the functions f(x)= 2x +1 and g(x)=5x+3.

• (f+g)(x)= 5x+2x+4

• (f+g)(x)=10x² +4

• (f+g)(x)=7x+3

• (f+g)(x)=7x+4