- The slope (average rate of change) from a point P(-2,-3) to a point Q(1,4)

is calculated as slope = (rise)divided by(run) = (change in y)/(change in x) = (4-(-3))/(1-(-2)) = (7)/(3).

- The rate of change in a relation such as y=mx and its ordered pairs (x,y)

can be measured by the ratio = (change in y)/(change in x) = m = slope.

Generally, the idea is that the average rate = (y

- Your Score Report appears after you have made 8 choices.

- Your Game Score is reduced by the number of butterfly hits.

- To slow the game speed repeat tap/click on the word

- To increase the game speed repeat tap/click on the word Math.

- Speed can also be adjusted with a keyboard's - and + keys.

- Refresh/Reload the web page to restart the game.

- Adjust the sound level of media on your device.

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