Question

can someone show me how to solve this?

Answer 1

Hi there!

If you have a coordinate given by (a, b), then the coordinate (-a, b) will give a reflection of the same point in the x axis, which is the horizontal one, do you need an explanation as to why, or can you figure it out?

And does this information help you figure out your question?

Answer 2

Basically you are mirroring the coordinates. So on the -
(-a,b) you would mirror it over the y axis. But keep the b positive. So just make the a coordinate a negative and place it in that spot

Answer 3

This also means that if you have a coordinate given by (a, b), then the coordinate (a, -b) will be a reflection in the y axis.

Can you figure out where a point (a, b) and then where (-a, -b) will be?

Answer 4

Over the x axis. Sorry. Not y

Answer 5

Oh, I see now. Thanks for helping!

Answer 6

Sorry, but would you mind clarifying why we reflect it across the x axis rather than the y?
In transformations, reflection across the x-axis: (x,y) --->(x, -y)
reflection across the y-axis: (x,y)----> (-x,y)
(a,b) ---> (-a, b) wouldn't that be across the y- axis?

Answer 7

I am confused by the fact that (c,d) is in Quadrant 2 rather than Quadrant 1 since the coordinates are positive.

Answer 8

Ops! You were right, I got mixed up. It is just the other way around.

Answer 9

Oh, but if (-a, b) is reflected across the y axis, it wouldn't make sense that (c,d) is positive. Could this be a mistake in the question?