Solving Polynomial Equations using Technology — Unit test

Question 1

What are the roots of the polynomial equation ? Use a graphing calculator and a system of equations. Round noninteger roots to the nearest hundredth.

Revolt · Accepted Answer

–1.73, 1.73, 2

Question 2

What is the root of the polynomial equation ? Use a graphing calculator and a system of equations.

Revolt · Accepted Answer

3

Question 3

The graph of this system of equations is used to solve . What represents the solution set?

Revolt · Accepted Answer

x-coordinates of the intersection points

Question 4

Which system of equations can be used to find the roots of the equation ?

Revolt · Accepted Answer

StartLayout Enlarged left-brace 1st row y = 4 x Superscript 5 Baseline minus 12 x Superscript 4 Baseline + 6x 2nd row y = 5 x cubed minus 2 x EndLayout

Question 5

A parabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve D(r) = 0.145r2. What is the radius when the depth is 8 inches? Round to the nearest thousandth of an inch.

Revolt · Accepted Answer

7.428 inches

Solving Polynomial Equations using Technology — Unit test Answers

More from this Course

TRY EDGENUITY HACKS