Question

Which of the following best describes the equation below

y = -2x3(third power) - 5
a.linear
b both linear and nonlinear
c neither linear nor nonlinear
d nonlinear

Answer 1

linear is 1st degree
since it is 3rd power, it is 3rd degree

it is nonlinear

Answer 2

The polynomial y = -2x3- 5 is a third degree polynomial because the highest power among all variables is 3. the plot is expected to have an inflection point which is the turning point of the direction of the curves. This is non-linear because the order is not equal to 1. The answer is D. d nonlinear