###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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# Point-Slope Form of a Line - Problem 4

Alissa Fong
###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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Often, students aim to use the point-slope form of an equation to write the equation for a line that is parallel or perpendicular to a given line through a given point. This is a good plan, but it's hard to know which variables to fill in (those with subscripts) and which to leave as variables (the plain x and y.) From there, solve for y to get the slope-intercept form of the line.

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