Which equation represents a linear function?

Equation 1: y = 2x2 + 1
Equation 2: y2 = 8x + 1
Equation 3: y = 5x3 – 1
Equation 4: y = 7x – 1

a) Equation 1
b) Equation 2
c) Equation 3
d)Equation 4

Respuesta :

Equation 2 would be a linear function.
The correct answer is D