Question

Which of the algebraic expressions are linear expressions? Select two answers.

A.

−9y

B.

−7x2+4x

C.

−12x2

D.

8xy

E.

−4/5x+3/8

Answer 1

Option A and Option E

Explanation:

By definition linear expressions have the following form:

`ax ^ n + b`

where

`n= 0` or
`n=1`

To answer the question, identify among the options the expressions that have this form:

Option A.

`-9y`

Where
`a =-9` and
`b=0` and
`n=1`

Option E.

`-(4)/(5)x+(3)/(8)`

Where
`a=-(4)/(5)` and
`b=(4)/(5)` and
`n=1`