Slope and Similar Triangles and Proportionality

Figures that have the same shape but not necessarily the same size.

• similar figures

• congruent figures

• parallel figures

• constant of proportionality

True or False: Similar triangles can be used to explain why the slope is the same between two different points on a line.

• True

• False

• y-intercept

• slope

• x-intercept

• origin

True or False: The slope of a line through the origin is equal to the unit rate of a proportional relationship.

• True

• False

True or False: The slope between two distinct points on a non-vertical line is always the same.

• True

• False

Which equation represents a line with a slope of -4 and passes through the origin?

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Tags

8.4.B

What is the slope?