Question

3 each graph represents a function. tell whether the function is linear or nonlinear.
a. _______
b. _______
c. _______
d. _______

Explanation:

A linear function graphs as a straight line, with a constant rate of change. A nonlinear function graphs as a curved line, with a non-constant rate of change.

• a. The graph is a curved parabola, so it is nonlinear.
• b. The graph has curves and multiple peaks/valleys, so it is nonlinear.
• c. The graph is a straight line, so it is linear.
• d. The graph is a horizontal straight line, so it is linear.

Answer:

a. Nonlinear
b. Nonlinear
c. Linear
d. Linear