Understanding Polynomial Zeros and Graphs

Understanding Polynomial Zeros and Graphs

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to determine the total number of zeros in a polynomial using the fundamental theorem of algebra. It covers examples of polynomials with different degrees, showing how to identify real and imaginary zeros through graph analysis. The tutorial also discusses double solutions, where a graph bounces off the x-axis, and concludes with a preview of finding actual zero coordinates using a graphing calculator.

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the Fundamental Theorem of Algebra help us determine about a polynomial?

The degree of the polynomial

The coefficients of the polynomial

The number of terms in the polynomial

The total number of zeros

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a polynomial has a degree of 4, how many total zeros does it have?

2

3

5

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What types of zeros can a polynomial have?

Only real

Only imaginary

Real, imaginary, and multiple

None of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can we identify real zeros of a polynomial using a graph?

By finding the x-intercepts

By finding the y-intercepts

By looking at the slope of the graph

By counting the number of peaks

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a polynomial with 5 total zeros, if 3 are real, how many are imaginary?

4

3

2

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean when a graph 'bounces' off the x-axis?

It indicates a double solution

It indicates a single real zero

It indicates no solution

It indicates an imaginary zero

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will the next video focus on?

Finding the degree of polynomials

Identifying types of zeros

Finding actual coordinates of zeros

Understanding polynomial coefficients