math help please

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1.
Which equation represents a nonlinear function? (1 point)

y = x + 7
y = 3x – 1
y = 3x2 + 1
y = x – 1/2

Is the answer "y = 3x - 1"?

  • math help please -

    Any equation with an exponent is non-linear

  • math help please -

    thank you!!!!!

  • math help please -

    That is not the answer. There is no exponent in that equation.

  • math help please -

    Is your third equation supposed to be

    y = 3x^2 +1

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