The graph shows the cost of purchasing t-shirts. find the constant rate of change for the graph. then explain what points (0,0) and (1,9) represent

Constant rate of change is 9

Step-by-step explanation:

To find the constant rage of change we pick 2 points from the graph

points (0,0) and (1,9)

Rate of change is the slope

Slope = 9/1

Constant rate of change is 9

points (0,0) and (1,9) represent 9 units up from (0,0) and 1 units the right

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

step-by-step explanation:

the true ones are a b and d