Two lighthouses flash their lights every 20 seconds and 30 seconds respectively. Given that they flash together at 8 p. m., when will they next flash together?

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

i hope this is what you were looking for.

see attached graph

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

b

step-by-step explanation:

i dont know