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Slope and y-interceptFact

Fact

Slope and y-intercept

Read steepness and starting value straight off a line

2 min 2 steps

Every line gives away two numbers: its steepness and its starting point. I used to read stairwells the same way, mostly for escape routes.

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Used by

Convert between linear formsTechniqueRewrite a line to show the feature you need
Slope and average rate of changeTechniqueChange in output over change in input, same order
Classify growth as linear or exponentialTechniqueSame difference is linear; same ratio is exponential