Thursday, November 3, 2011

11-3 Class notes

Homework for Friday 10-4:  page 86, items 10, 11, 12, 13, 14

Today in class we investigated the changes in x (left and right movement) and the changes in y (up and down movement) as we trace along the graph of a straight line.  We did the exercises on pages 84 and 85.

Slope is vertical change divided by horizontal change.

Slope is change in y divided by change in x.

Slope is rise divided by run.

Slope is "up" divided by "over.

Slope is a ratio that can be an integer, a fraction or a decimal.

The slope of a straight line is the same everywhere along the line.

Slope is a measure of the steepness, the uphillness or downhillness, of a line.

Since a slope is a ratio, its units are the numerator units divided by the denominator units.

Slope is the ratio of output to a given input.

No comments:

Post a Comment