Deg Graph

Precalculus help with a question?

if Y = X W-2 L 3, then get the equation of the curve when it is rotated 90 degrees. needles Watch the original. Please tell me your work and how he has the answer that is the last problem in my task, I am very confused thank you soooo much

I do not know what you've learned so far, but I hope it helps. rotations in systems XY coordinates are in the opposite direction, so that a rotation 90 degrees clockwise is best expressed as a rotation of 270 degrees counterclockwise. When you rotate a point in the coordinate system 270 degrees in the opposite direction, the coordinates (A, B) as (BA). This means the point (2,1) becomes (1, -2). This comes from the polar form of (x, y) -> (OCR @, rsin @). Add 270 degrees and we get (OCR (@ 270), rsin (@ 270). Using trigonometric identities and TE (r [cos270 cos @ - @ Sen sin270], R [@ sin + cos cos270 @ Sin270]). Cos270 = 0 and sin270 =- 1 (r [0 - Sin @ (-1)], r [0 + cos (-1)]). (r [0 + sin @], r [0 - Cos @]). (Rsin @, @-CON) (y-x) (ie (x, y) = (2,1) -> (y-x) = (1, -2) So, as prior knowledge in the equation and get:-x = | Y - 2 | 3 If you watch this show is like a impossible equation. You can not get a negative number by adding two positive numbers. That's where I'm not sure if you can continue. There is a unreal set of numbers often marked with an "i". These figures are in a plane that is 180 degrees to the terms of the number of real courtesy. You can not see in real space, because the figures are not real. To get the actual number of unreal equation above, you must you turn to 180deg. Using polar coordinates can be shown that a rotation of 180 degrees allows the following transformation (x, y) -> (-x,-y) This gives the equation: x = |-y-2 | 3 This can be further simplified to: x = | - (O 2) | 3 xo = | y 2 | 3 If the graph you can see it the correct answer. Sorry if that confuses you. Ask your teacher for help if necessary. They are excellent resources and know what I assume you've learned.