Question

in the graph below point D is reflected across the y axis. what are the coordinates of it's image
a. 3, -1
b. 3, 1
c. -3, -1
d. -3, 1

Answer 1

first find the coordinates of D

then multiply the x-coordinate by (-1)

Answer 2

or you could also sketch the transformation, that works too

Answer 3

is it A?

Answer 4

nope, A is the coordinate of point D before transformation

Answer 5

you want to multiply the x-coordinate by (-1)