Find the slope of the line through each pair of points

Bugs bunny was 33 meters below ground, digging his way toward pismo beach, when he realized he wanted to be above ground. he turned and dug through the dirt diagonally for 80 meters until he was above ground

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

The area of square garden is 300m squared. how long is the diagonal?