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I need help with this math concept problem in my homework

User Reneli
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1 Answer

4 votes

Verify each transformation

we have that

270 rotation counterclockwise about the origin

The rule of this rotation is

(x,y) -----> (y,-x)

we have

E(3,-2)

so

E(3,-2) -------> E'(-2,-3) ----> is ok

G(4,-8) -----> G'(-8,-4) ----> is ok

F(9, -5) -----> F'(-5,-9) ----> is ok

therefore

270 rotation counterclockwise about the origin is true

Verify 90 rotation clockwise about the origin

the rule is

(x,y) -----> (y,-x)

is the same that the 270 rotation counterclockwise about the origin

that means

90 rotation clockwise about the origin is true

The reflection over the y-axis is not true , because the image and pre-image not have symmetry

therefore

the answe is

option A

I and III only

User Emmanuel Sys
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5.3k points