Question

Which equation represents a linear function?

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

A. Equation 1
B. Equation 2
C. Equation 3
D. Equation 4

Answer 1

Equation 2: y = 8x + 1

Step-by-step explanation: got it right on test

Answer 2

The answer is equation 2. The reasoning is because a linear function is y=mx+b
therefore, y=8x+1 seems to be very close.