Question

Identify which functions are linear or non-linear. A. f(x) = x2 + 1 B. f(x) = 2x + 5 C. f(x) = x 2 + 3 D. f(x) = 3 x + 7 E. f(x) = 4x + 10 2 - 5

Answer 1

f(x) =

3

2

x −

1

2

Explanation:

A function is linear if it can be expressed in the form f(x) = mx + b or if its graph is a straight line.

Answer 2

I think B, D, & E are the functions that are linear leaving A & C to be the ones that are non-linear