Question

Find the rate of change in this graph...?

Answer 1

It's really confusing, I don't understand how to do it

Answer 2

rate of change = slope, that's the first thing you need to realize
so since this function is linear, to calculate slope you can use the equation:
\[m=\frac{ y _{2} -y _{1}}{ x _{2}-x _{1}}\]you need to choose two points on the graph. From the graph we can see there are points (3,25) and (0,0)
Your y-values are 25 and 0, and your x-values are 3 and 0,
You put these values into your equation and you get:\[m=\frac{ 25-0 }{ 3-0 }\] This simplifies to:\[m=\frac{ 25 }{ 3 }\] Therefore, the rate of change of the graph is 25/3.

Answer 3

Thank you SO much! :)))

Answer 4

^_^