Answer:
(a) 119 ft²
Explanation:
You want to know the area of a kitchen in square feet if its corners have coordinates (11, 5), (-6, 5), (11, -2) and (-6, -2).
Rectangle
The vertices of the kitchen floor are the corners of a rectangle. They lie on the grid lines x=11 and x=-6, which are 11 -(-6) = 17 feet apart, and they line on the grid lines y=5 and y=-2, which are 5 -(-2) = 7 feet apart.
The floor of the kitchen is a 17 ft by 7 ft rectangle, so has area ...
A = LW
A = (17 ft)(7 ft) = 119 ft²
The area of the kitchen is 119 square feet, matching choice A.
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