Use the image to answer the question.
A coordinate plane shows both the axes ranging from negative 9 to 9 in increments of 1. A rectangle is plotted on the graph. The plotted points of the rectangle are as follows: left parenthesis 3 comma negative 3 right parenthesis; left parenthesis 7 comma negative 3 right parenthesis; left parenthesis 7 comma negative 8 right parenthesis; and left parenthesis 3 comma negative 8 right parenthesis. A solid line connects the plotted points.
Rhonda is going to cover part of her yard in solar panels. If she adds a second panel to the right so that they are touching, what will the total area be for the two solar panels?
(1 point)
Responses
18 sq. ft.
18 sq. ft.
40 sq. ft.
40 sq. ft.
20 sq. ft.
20 sq. ft.
80 sq. ft.
80 sq. ft.
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40 sq. ft.
The area of a rectangle is calculated by multiplying the length by the width. The length of the rectangle is 4 units (7-3=4) and the width is 5 units (8-3=5). Therefore, the total area for the two solar panels would be 4 x 5 x 2 = 40 sq. ft.