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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

The graph shows the cost of purchasing Tshirts Find the constant rate of change for the graph Then explain what points 00 and 19 represent class=

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Answer:

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

[tex]slope =\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]slope =\frac{9-0}{1-0}=9[/tex]

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

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