Answer:
(A)(10, –2)
Step-by-step explanation:
The image of the given triangle has points :
When points are reflected across the line y = x, the x-coordinate and y-coordinate change places.
Therefore, the pre-image of the triangle has points:
Therefore, the pre-image of vertex A' is (10,-2).
The correct option is A.
Answer:
The width of the rectangle is <u>7 feet</u>.
Step-by-step explanation:
Given:
The perimeter of a rectangle is 54 feet, and the length is 13 feet more than the width.
Now, to find the width of the rectangle.
Let the width be
So, the length is
Perimeter = 54 feet.
Now, to get the width we put formula:
<em>Subtracting both sides by 26 we get:</em>
<em>Dividing both sides by 4 we get:</em>
Therefore, the width of the rectangle is 7 feet.