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Mathematics 17 Online
Quicksilver0125:

A pre-image point is rotated 90° clockwise. If the pre-image point had the coordinates (3, -5), what are the coordinates of its image point? (-3, 5) (5, 3) (-5, -3) (-3, -5)

Quicksilver0125:

plz help

Quicksilver0125:

i have a feeling it is d

Isolation:

I believe not When you rotate something, the x and y values become different Imagine plotting it in your head, and rotating it 90 degrees clockwise, don't you think it would lean closer towards the x-axis, but further away from the y-axis?

Isolation:

wait wait wai t wait wait i looked wrong i thought it to be (-3,-5) shoot

Quicksilver0125:

then what is it

Isolation:

Well, use the process of elimination

Isolation:

First looking at (-3,5) do you think that this is 90 degrees clockwise?

1 attachment
Isolation:

I would believe that it is 180 degrees.... agreed? so this is not it

Quicksilver0125:

so b.

Isolation:

no, b is 90 degrees counterclockwise

Quicksilver0125:

then what is it

Isolation:

Well, I guess you have the answer now lol, since we eliminated a, b, and d

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