Question

Use the graph to complete the statement. O is the origin. Ry−axis ο Ry=x: (-1,2)

A. (2, -1)
B. (-2, -1)
C. (-1, -2)
D. (1, -2)

Answer 1

`(x,y) = (1,2)` --------
`R_(y-axis)`

`(x,y)=(2,-1)` ---------
`R_(y=x)`

Explanation:

Given

`(x,y) = (-1,2)`

Required

`R_(y-axis)`

`R_(y=x)`

`R_(y-axis)` implies that:

`(x,y) = (-x,y)`

So, we have: (-1,2) becomes

`(x,y) = (1,2)`

`R_(y=x)` implies that

`(x,y) = (y,x)`

So, we have: (-1,2) becomes

`(x,y)=(2,-1)`