Question

If the domain of the coordinate transformation (, ) = ( + 2,− − 4) is (1, -4), (3, -2), (0, −1), what is the range?

A. (-2, -5), (0, -7), (1, -4)

B. (0, 3), (-2, 5), (-3, 2)

C. (3, 0), (5, -2), (2, -3)

D. (-5, -2), (-7, 0), (-4, 1)

Answer 1

A. (-2, -5), (0, -7), (1, -4)

Explanation:

The following transformation is applied:

`(x,y) \rightarrow (y + 2, -x - 4)`

To find the range:

We apply the transformation to the points in the domain. Thus:

`(1,-4) \rightarrow (-4 + 2, -1 - 4) = (-2, -5)`

`(3,-2) \rightarrow (-2 + 2, -3 - 4) = (0, -7)`

`(0,-1) \rightarrow (-1 + 2, 0 - 4) = (1, -4)`

Thus the correct answer is given by option a.