PR Accel. Review

The unit rate is the same as the ________. MULTIPLE ANSWERS

• constant of proportionality

• rate

• slope

• equivalent ratio

• ordered pair (0,0)

Select all of the following that are requirements for a proportional relationship?

• it just has to look proportional

• the ratios of y/x are equal most times

• when the input is 0, the output is not 0.

• the ratios of y2 - y1 / x2 - x1 is equal every time

• when x is 0, y is also 0.

The formula to find slope is different from the formula to find constant of proportionality.

• True

• False

The corresponding sides of similar triangles are proportional to each another.

• True

• False

The slope of a line is ____________ for any two points.

• the same

• different

• similar

• The graph is proportional because all the lines are straight and pass through the origin.

• This graph is proportional because the ratio of y2 - y1 / x2 - x1 is the same for all points and passes through the origin.

• The graph is not proportional because the line is not straight.

• The graph is not proportional because the line does not pass through the origin.

Select all the methods that can be used to find the slope of a line.

• rise over run

• y/x

• x2 - x1 / y2 - y1

• similar triangles

• y2 - y1 / x2 - x1

What is the slope of this graph?

Slope can be positive or negative.

• True

• False