Question

A rectangle has vertices at the points A(-4,-5), B(-4, 3), C(3, 3), and D(3,-5) as

shown below. The distance between points A and D is the length of the rectangle. The
length of the rectangle is
units.

Answer 1

7 units

Explanation:

You want the distance between A(-4, -5) and D(3, -5).

Distance from coordinates

The given coordinates are the end points of a horizontal line segment. Its length is the difference of the x-coordinates:

length = 3 -(-4) = 3+4 = 7

The length of the rectangle is 7 units.

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Additional comment

The width of the rectangle is AB = 3 -(-5) = 8 units. This is the difference of the y-coordinates of the vertical line segment end points.