Figure ABCDE was reflected across the line y = r to
create figure A B C D'E. What are the coordinates of
the pre-image of E?

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

60

step-by-step explanation:

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.