Arectangle has vertices at these coordinates. (1,7) (1,3) (9,3). what are the coordinates of the fourth vertex of the rectangle?

 (9,7)

Step-by-step explanation:

By definition, a rectangle is a quadrilaleral that has two pairs of equal sides.

When you plot the points given in the problem you obtain the points shown in the first figure.

Then, keeping the definition above on mind, the fourth vertex must be at coordinates (9,7), as you can see in the second figure.

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