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The point P (9.-2) is translated 2 units up to make point P. Then P' is reflected across the y-ax's to form point P”. What are the coordinates of P"?" 0 (-11-2) O (-9.4) O (-9,00 O (-9,4)

Respuesta :

The point P (9.-2) is translated 2 units up to make point P. Then P' is reflected across the y-ax's to form point P”. What are the coordinates of P"?

Part 1

P(9,-2)

the rule of the translation is

(x,y) -------> (x,y+2)

so

P(9.-2) --------> P'(9,-2+2)

P'(9,0)

Part 2

The rule of the reflection across the y-axis is

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

so

P'(9,0) --------> P''(-9,0)