Unit 5 Test Quadratics

1

The quadratic function
is graphed. Which statement best discribes the function

It opens up and has a minimum

It opens down and has a maximum

It opens down and has a minimum

It opens up and has a maximum

1

When solving the system algebraically, what is the solution?

F

G

H

J

1

Which situation would result in a quadratic function having a maximum value?

The leading coefficient is positive

The graph opens upward

The leading coefficient is negative

The vertex is below the x-axis

1

Anita’s solution was (0, 5) and (8, 21). Which method can Anita use to determine the
reasonableness of her solution to the system of equations?

Anita can solve each equation for y, graph both equations on a coordinate plane, and

determine the intersection points.

Anita can solve each equation for y, create a table of values for each equation, and

determine

Anita can substitute the point (0, 5) into both equations and confirm that it yields a true

equation, and also substitute the point (8, 21) into both equations and confirm that it yields

a true equation.

All the answers are correct

1

Which statement identifying the number of cell phones Victoria must repair so her cost and sales
are the same is true?

Victoria needs to repair 15 phones because the solution shows costs and sales are equal for

approximately 14.5 and –34.5 repairs and it is not reasonable to partially repair a phone or

repair –34 phones

Victoria needs to repair 10 phones because the solution shows costs and sales are equal for

approximately 10 and –50 repairs and it is not reasonable to repair –50 phones.

Victoria needs to repair 35 phones because the solution shows costs and sales are equal for

approximately –14.5 and 34.5 repairs and it is not reasonable to partially repair a phone or

repair –14 phones.

Victoria needs to repair 50 phones because the solution shows costs and sales are equal for

approximately –10 and 50 repairs and it is not reasonable to repair –10 phones.

1

When the quadratic equation is solved, which best describes the nature of the roots?

two imaginary roots

two real irrational roots

one real root

two real rational roots

1

In the year 2002, Jordan and Alex each received $4,000. Jordan decided to put his $4,000 in a personal safe and each year add $800 to his money stash because he does not trust banks. Alex decided to invest her $4,000 in technology stocks. The value of Alex’s stocks increased according to a parabolic curve until it peaked at $48,000 in 2018. By 2022, Alex’s technology stock had fallen to a value of $34,000.
Formulate a system of equations to determine the number of years it would take for the amount Jordan has in his money stash to be equal to the value of Alex’s technology stocks. (Round to the nearest whole number.)

8 years

12 years

16 years

20 years

1

What are the solution(s) to the quadratic equation

F

G

H

J

1

Select the correct numeric value to represent the solution in interval notation.

A

B

C

D

1

Consider the quadratic function
Hoe does the parabola open

Up

Down

1

The inequality
is solved.
Which type of solution should you expect?

An AND statement

An OR statement

A single value

No solution

1

The inequality
Is solved. Based on the leading coefficient and the inequality symbol, which describes the solution set?

The solution is between the zeros (AND)

The solution is outside the zeros (OR)

The solution includes all real numbers

The solution has no real values

1

Which inequality will result in a solution written using AND?

1

A quadratic function has a positive leading coefficient. What must be true about the graph?

The graph opens down and has a maximum

The graph opens up and has a maximum

The graph opens down and has a minimum

The graph opens up and has a minimum

Unit 5 Test Quadratics

The quadratic function is graphed. Which statement best discribes the function

When solving the system algebraically, what is the solution?

Which situation would result in a quadratic function having a maximum value?

Anita’s solution was (0, 5) and (8, 21). Which method can Anita use to determine thereasonableness of her solution to the system of equations?

Which statement identifying the number of cell phones Victoria must repair so her cost and salesare the same is true?

When the quadratic equation is solved, which best describes the nature of the roots?

What are the solution(s) to the quadratic equation

Select the correct numeric value to represent the solution in interval notation.

Consider the quadratic function Hoe does the parabola open

The inequality is solved.Which type of solution should you expect?

The inequality Is solved. Based on the leading coefficient and the inequality symbol, which describes the solution set?

Which inequality will result in a solution written using AND?

A quadratic function has a positive leading coefficient. What must be true about the graph?

The quadratic function is graphed. Which statement best discribes the function

When solving the system algebraically, what is the solution?

Which situation would result in a quadratic function having a maximum value?

Anita’s solution was (0, 5) and (8, 21). Which method can Anita use to determine thereasonableness of her solution to the system of equations?

Which statement identifying the number of cell phones Victoria must repair so her cost and salesare the same is true?

When the quadratic equation is solved, which best describes the nature of the roots?

What are the solution(s) to the quadratic equation

Select the correct numeric value to represent the solution in interval notation.

Consider the quadratic function Hoe does the parabola open

The inequality is solved.Which type of solution should you expect?

The inequality Is solved. Based on the leading coefficient and the inequality symbol, which describes the solution set?

Which inequality will result in a solution written using AND?

A quadratic function has a positive leading coefficient. What must be true about the graph?

The quadratic function
is graphed. Which statement best discribes the function

Anita’s solution was (0, 5) and (8, 21). Which method can Anita use to determine the
reasonableness of her solution to the system of equations?

Which statement identifying the number of cell phones Victoria must repair so her cost and sales
are the same is true?

Consider the quadratic function
Hoe does the parabola open

The inequality
is solved.
Which type of solution should you expect?

The inequality
Is solved. Based on the leading coefficient and the inequality symbol, which describes the solution set?

The quadratic function
is graphed. Which statement best discribes the function

Anita’s solution was (0, 5) and (8, 21). Which method can Anita use to determine the
reasonableness of her solution to the system of equations?

Which statement identifying the number of cell phones Victoria must repair so her cost and sales
are the same is true?

Consider the quadratic function
Hoe does the parabola open

The inequality
is solved.
Which type of solution should you expect?

The inequality
Is solved. Based on the leading coefficient and the inequality symbol, which describes the solution set?