Question

Can someone show me how to do this? WILL MEDAL!
Find the image of O(-2,-1) after two reflections, first across the line y = -5 and then the line x = 1
Am I supposed to find the difference between the y values then subtract that from -5? Help please

Answer 1

have you learned rise over run?

Answer 2

Yes, but a while ago :L

Answer 3

alright so y would be your rise because the y axis goes up and down while your x will be the run therefore you will travel from point -2,-1 up 1 and over 5.

Answer 4

Thats what i think there asking. atleast thats how i would solve it! hope this helps!

Answer 5

@jim_thompson5910 can you help clarify a little? I have the options of
(4,-9)
(-2,-1)
(1,-5)
(-1,-6)

Answer 6

reflect (-2,-1) over the line y = -5 to get ???

Answer 7

That is what Im confused about. I believe I understand rise/run but I really confused

Answer 8

Im*

Answer 9

Here's the initial graph of the point (-2,-1) and the line y = -5

Answer 10

What's the vertical distance from the point (-2,-1) to the red line y = -5 ?

Answer 11

Ok, I see, it is -4, so it would be (4,-9)?

Answer 12

4 units (distance is always positive)

Answer 13

you go another 4 units down to land on (4,-9)

Answer 14

that's the result of reflecting (-2,-1) over y = -5

Answer 15

do the same for the next reflection but keep in mind that x = 1 is a vertical line

Answer 16

Ok, so its (-2,-1) after the x = 1 reflection?

Answer 17

(-2,-1) is the original point

Answer 18

Step 1: start with (-2,-1)

step 2: reflect over y = -5 to get (-2,-9) (see attached)

step 3: reflect (-2,-9) over the line x = 1 to get ???

Answer 19

OHH, my bad, sorry for my incompetence. It is 4,-9.

Answer 20

very good

Answer 21

we start at point A

A reflects over y = -5 to get A'

then A' reflects over x = 1 to get A''

Answer 22

Thank you so much!

Answer 23

you're welcome