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Which equation represents a linear function?

Equation 1: y = 2x^2 + 1
Equation 2: y^2 = 3x + 1
Equation 3: y = 5x - 1
Equation 4: y = 4x^4 - 1

User Apeiros
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1 Answer

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Equation 3: y = 5x - 1

Equations with powers in them are not linear.

User JackHasaKeyboard
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