Q29.

Question

EMPLOYMENT For Exercises 27–30, use the graph that models the unemployment rates from 1975–2000.

If this graph was modelled by a polynomial equation, what is the least degree the equation could have?

Step-by-Step Solution

Verified
Answer

The least degree the equation could have is 5.

1Step 1. Given

Given graph is:

2Step 2. To determine

If this graph was modelled by a polynomial equation, what is the least degree the equation could have?

3Step 3. Calculation

From the graph:

The graph is going upwards on the left side and downwards on the right side. Since it is going on two different sides on both ends so it must be an odd degree polynomial equation.

There are 4 turning points. So, the least degree of the polynomial equation is 4+1=5.