Please help, the problem is in the picture!

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.