Predict the result
Find the line with y-intercept negative three and slope five halves.

Set up the model
Use slope-intercept form, y equals m x plus b.
Substitute the given slope and the y-intercept value.

Work the example
Put five halves in place of m and negative three in place of b.
The equation is y equals five halves x minus three.

Check the result
Find the line with y-intercept five and slope negative seven.
Take eight seconds to think before the answer appears.
[Eight-second silent pause to work; the answer remains hidden.]
The equation is y equals negative seven x plus five.

Interpret the result
These equations describe nonvertical lines; a vertical line instead has x equal to a constant.