Question

The coordinates of rectangle ABCD are A(2, -7), B(8, -7), C(8, -10), D(2, -10). What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the x -axis?

Answer 1

(-5, -8.5)

(5, 8.5)

(5, -8.5)

(-5, 8.5)

Answer 2

have you covered slopes yet?

Answer 3

no its a pretest but i dont like getting any wrong

Answer 4

then I'd assume you're expected to do this graphically.... so just graph the points and see where diagonals meet

since it's a rectangle, it'd be in the middle of the rectangle where the diagonals meet

Answer 5

im lost

Answer 6

i have no where to graph

Answer 7

-5,8.5

Answer 8

?

Answer 9

@jdoe0001

Answer 10

load this graph in Paint and use that

Answer 11

okay i did that but i still dont see where they meet @jdoe0001

Answer 12

\(\large A(2, -7), B(8, -7), C(8, -10), D(2, -10). \implies
\begin{array}{ccllll}
x&y\\
\hline\\
2&-7\\
8&-7\\
8&-10\\
2&-10
\end{array}\)

Answer 13

im confuse

Answer 14

what do i do now

Answer 15

but they dont all meet

Answer 16

nope you're asked for

"What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the x -axis?"

Answer 17

so you have to reflect the rectangle over the x-axis
sorta like putting a mirror on the horizontal axis and reflect it there

then find where the diagonals meet

Answer 18

nvm i dont need to do it i ran out of time

Answer 19

but what was the answer ? and how @jdoe0001