Graph f(x) = 5x -45
identify intercepts

Intercepts y axis at y=-45
intercepts x axis when y=0
so set the equation equal to zero
0=5x-45
45=5x
x=9
intercepts x axis at x=9

if you need a coordinate just plug the x or y in the original to get the other point

Cis your correct answer

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.