Question

Need help with a math question

Answer 1

(2, 7)

Explanation:

Under a reflection in the y- axis

a point (x, y) → (- x, y)

Hence

P(- 2. 7) → P'(2, 7)

Answer 2

P'(2,7)

EXPLANATION

When we reflect a point in the y-axis, we negate the x-coordinates.

The rule for reflection across the y-axis is

`(x,y)\to (-x,y)`

The given point, P has coordinates (-2,7)

To obtain the coordinates of the image P', we negate the x-coordinate of P(-2,7).

`P( - 2,7) \to \: P'( - - 2,7)`

`P( - 2,7) \to \: P'(2,7).`