Use the left and right arrows to move through the lesson or click “Show Step by Step” below to see all the steps at once.

Desmos Shortcuts

By typing in these shortcuts, you’ll get the indicated feature.

shift + 6: exponent
sqrt: square root
cbrt: cubed root
nthroot: “nth” root
table: creates a table to add points
pi: adds the pi value
frac: creates an empty fraction
< =: ≤
shift + \: absolute value symbol

Linear Equations in 2 Variables – Slope of Perpendicular Line (SPR)

This guide use Desmos to teach you how to find the slope of a line that's perpendicular to another line by using its equation. You'll learn how to determine the slope from the given equation, and then apply the concept of negative reciprocals to find the slope of the perpendicular line using the calculator.

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Get Hands-on Practice with Acely

Want to track your progress in SAT math over time? Acely has a question bank of over 4,500 questions, where you can select the difficulty or a similar question to practice. In practice mode you can get live hints and explanations from an AI tutor, with Desmos tips and tricks as well!

Desmos Shortcuts

By typing in these shortcuts, you’ll get the indicated feature.

shift + 6: exponent

sqrt: square root

cbrt: cubed root

nthroot: “nth” root

table: creates a table to add points

pi: adds the pi value

frac: creates an empty fraction

< = : ≤

shift + \: absolute value symbol