- The tangent of angle A can be written as tan A and equals the slope from point A(0,0) to point D(2,4).

This tangent ratio = slope = (rise)/(run) = (change in y)/(change in x) = (4-0)/(2-0) = (4)/(2) = 2/1.

- Generally, when angle A is in standard position as shown at this graph's origin (0,0)

then tan A equals the ratio = (rise)/(run) = slope.

- Recall, the slope between two points P(-2,5) and Q(4,-1) is (rise)/(run) = ((-1)-(5))/(4-(-2)) = (-6)/(6) = -1.

If the run = 0, then the vertical slope is said to be undefined.

- A slope of zero is a horizontal slope.

- The slope from a point P(x

- Your Score Report appears after you have made 6 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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