Educator

Writing Linear Functions

• The slope-intercept form of a linear equation is y = mx + b, where m is the slope of the line and b is the y-intercept of the line.

• The point-slope form of a linear equation is y – y₁ = m(x – x₁), where m is the slope and (x₁, y₁) is a point on the line.

• Use information given about a line to write its equation in these forms. Sometimes it is easier to put it in one form than the other one.