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How to Find Slope-Intercept Form When Given a Slope and Point

How to Find Slope-Intercept Form When Given a Slope and Point

Author: Laura Kniffin

This packet reviews:

How to write an equation for a line when given one point and a slope (using y = mx +b)
How to deal with a slope of zero or an undefined slope

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Review of Slope

(0/4) = a slope of zero, because zero divided by any number is zero.

*For example, if you had zero cookies to hand out to four people and had to divide that number evenly by each person, each person would get zero cookies.

(4/0) = undefined slope, any number divided by zero is an undefined slope.

*For example, if you had four cookies to hand out evenly to people, but there is no one to hand them out to, it is impossible.

Finding The Slope-Intercept Equation Given the Slope and a Point

Examples to Try!

Find the slope intercept equation when given the slope and a point:

1.) m = 4 , (2,6)

2.) m = 4/8, (8,8)

3.) m = -5, (0,7)

4.) m = -2, (3,-6)

Answers to Examples