Question

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Answer 1

Reflected across the X axis means, it will maintain the same X value, but the Y value of the point will change sign

Answer 2

So i would find the point for the diagonals intersection first, then reflect that point over the x axis by simply changing the sign on the Y coordinate

Answer 3

You could find the intersection of the diagonals, by finding the MIDPOINT of one of the diagonals

Answer 4

Do you recall the midpoint formula rule

Answer 5

^Ah, the midpoint formula is the life of math.

Answer 6

you need to use 2 points that are opposite vertices

Answer 7

Yes, one sec.

Answer 8

A and C
or
B and D

Answer 9

Again I got 5, 8.5

Answer 10

are you sure the second is not -8.5

Answer 11

half way between -7 and -10 is -8.5

Answer 12

Yes, but I thought you said you flip the Y coordinate?

Answer 13

I got 5, -8.5 , yes.
Do I flip the -8.5 to 8.5?

Answer 14

right, that would be the final answer then. yeah, i thought you were just finding the midpoint first.

Answer 15

good job

Answer 16

So it's (5, 8.5) for my final answer , correct?

Answer 17

right,

The other way to do the problem is just the reverse, first flip the rectangle over the X axis by changing the Signs of the Y coordinate on ALL the points . Then doing the midpoint

Answer 18

I think it was easier this way, find the midpoint, then flip

Answer 19

Thank you.
Could I tag you in one more problem?

Answer 20

The thing you had to realize for this problem, was that the diagonals of a rectangle intersect and cut each other in half

Answer 21

sure