Mathematics, 03.12.2020 01:20 paper

Which equation represents a linear function? equation 1: y=2x^2+1
equation 2: y=8x+1
equation 3:y=5x^3-1
equation 4: y^2=4x-1

a. equation 1
b. equation 2
c. equation 3
d. equation 4

I need an answer by today ASAP! please!

Answers: 2

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Which equation represents a linear function? equation 1: y=2x^2+1
equation 2: y=8x+1
equa...