Slope and Constant of Proportionality REVIEW

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Front

How do you calculate the constant of proportionality from a table of values?

Back

To find the constant of proportionality, divide the output value (y) by the input value (x) for any pair of corresponding values.

Front

What are the coordinates for the origin in the coordinate plane?

Back

(0,0)

Front

What is the x-axis?

Back

The x-axis is the horizontal line in a coordinate plane where the y-coordinate is zero.

Front

What is the y-axis?

Back

The y-axis is the vertical line in a coordinate plane where the x-coordinate is zero.

Front

What is slope?

Back

Slope is a number that describes the steepness of a line, calculated as the rise over run (change in y over change in x).

Front

What does a slope of 0 indicate?

Back

A slope of 0 indicates a horizontal line, meaning there is no change in y as x changes.

Front

What does an undefined slope indicate?

Back

An undefined slope indicates a vertical line, where x remains constant while y changes.

Front

What is the formula for calculating slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1)