Answer:
Option A and Option E
Step-by-step explanation:
By definition linear expressions have the following form:

where
or 
To answer the question, identify among the options the expressions that have this form:
Option A.

Where
and
and 
Option E.

Where
and
and 
The slope of the line is -1
And the linear equations is y= -1x-4
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Can you tell us the dimensions of the trapezoid so we can help you?
Answer:
x=-2
Step-by-step explanation: