Hello, please help. help is needed

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Pentagon abcde is dilated according to the rule do,3(x, y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)