Question

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

Answer 1

Answer: Equation 4

Step-by-step explanation: In order for a function to be linear, we need to be able to write it in the form f(x) = mx + b.

Notice that equation 4 is in this form as it's y = 7x - 1.

This equation is linear.