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Prepdle

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Match or verify a representationTactic

Tactic

Match or verify a representation

Test the point where the choices disagree

10 min 6 stepsGraded practice at the end

A vending machine tests one thing about a coin, and that's how it caught my washers. A wrong table fails one test the same way.

Meet it
Spot it
Run it
Dodge the traps
Play with it
Prove it

The first step is free. A free account opens the rest.

Calls on

Evaluate and invert a functionTechniqueInput given, substitute; output given, solve
Read values from a graph or tableTechniqueRead the scale before you read the value
Test a point; read a regionTechniquePlug the point in, then read the line and the shading
Backsolve from the choicesTacticTest the middle choice, then step up or down

Other routes

Graph it (Desmos)TacticTurn the question into a point you can click