Given: Y is the midpoint of XZ
Prove: XZ=2XY

What is the equation of the graph below? y=sec(x)-4

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.