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Quiz 9.1-9.3

Last updated about 5 years ago

10 questions

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Question 1

1.

Match the graph with the number of real solutions.

Zero real soultions
One real solution
Two real solutions

Question 2

2.

Find the roots shown by the graph

x=-25

No solutions

x={-5, 5}

x={-8, 8}

Question 3

3.

The zero product property states

If ab=0, then a=0 or b=0.

If ab=-1, then a=-1 or b=-1.

If ab=0, then a=1 or b=1.

If ab=1, then a=1 or b=1.

Question 4

4.

Which shows the correct use of the zero product property?

Question 5

5.

Which correctly shows the quadratic formula?

Question 6

6.

What is the discriminant?

The way to find what the roots are.

Another name for the solutions.

Question 7

7.

Match the value of the discriminant with the number and type of roots.

Discriminant =0
Discriminant <0
Discriminant >0

0 real roots
1 real root
2 real roots

Question 8

8.

When completing the quardratic formula, you get a positive prime number as a radicand. This means that

you will not have a solution.

you will have exactly one solution.

you could easily graph the parabola to find the solution.

you have an irrational answer as a solution.

Question 9

9.

Given the quadratic function

identify a, b, and c.

a=3, b=0, c=20

a=3, b=0, c=-20

a=3, b=1, c=-20

a=3, b=1, c=20

Question 10

10.

Which shows the appropriate way to "branch" the final answer to the quadratic formula?