The graph shows how the length of time a van is rented is related to the rental cost. What is the rate of change shown in the graph?

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Select 2 statements that are true about the equation y+6=-10(x-3).1) the slope of the line is -102) the slope of the line is 33) one point on the line is (3,6)4) one point on the line is (3,-6)

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)