Question

Please help I have a quiz soon

Answer 1

Answer:

The option that no represent a linear function is $f(x)=3^x$

Step-by-step explanation:

we know that

The graph of a linear function is a straight line

The equation of a linear function in slope intercept form is equal to

$f(x)=mx+b$

where

m is the slope

b is the y-intercept

Verify each case

option 1) we have

$f(x)=3x-2$

This option represent a linear function

where

m=3

b=-2

option 2) we have

$f(x)=x$

This option represent a linear function

where

m=1

b=0

This option represent a linear direct variation function

option 3) we have

$f(x)=3^x$

This option not represent a linear function

This option represent a exponential function

option 4) we have

$f(x)=3x$

This option represent a linear function

where

m=3

b=0

This option represent a linear direct variation function