Search Header Logo

Algebra Unit 4 Test Review

Authored by Justin Hockey

Mathematics

9th Grade

CCSS covered

Used 5+ times

Algebra Unit 4 Test Review
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If f(x)=2x2-3x, what is the value of f(5)?

10x - 15

-1 or 5/2

35

85

Tags

CCSS.HSF.IF.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph of f(x)=(x+2)2-2 is shown in the graph. Which describes the transformations from the graph of f(x) to the graph of -f(x-4)?

Reflect the graph of f(x) about the y-axis and shift it 4 units to the right to get a parabola opening upward with a vertex at (6, −2).

Reflect the graph of f(x) about the x-axis and shift it 4 units to the left to get a parabola opening downward with a vertex at (−6, 2).

Reflect the graph of f(x) about the y-axis and shift it 4 units to the left to get a parabola opening upward with a vertex at (−2, −2).

Reflect the graph of f(x) about the x-axis and shift it 4 units to the right to get a parabola opening downward with a vertex at (2, 2).

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph of a parabola is sketched below. The parabola contains the point (-4,10) and has the vertex (2,-8). What are the coordinates of the positive x-intercept of the parabola?

(2, 0)

(8, 0)

(6, 0)

(4, 0)

Tags

CCSS.HSF-IF.C.7A

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A study shows that hospital admissions for asthma, a breathing disorder, increase on days when the concentration of ozone in the air is elevated. Surprisingly, low concentrations of ozone actually decrease asthma admissions. This is because another chemical released with the ozone has beneficial effects, although these are overcome by the negative effects of higher ozone concentrations. The graph shows that hospital asthma admissions as a function of ozone concentration fit a parabolic model: y = 0.01x2 − 0.6x + 19.5. What are the coordinates at which asthma admissions are at the same level as when there are no ozone emissions at all?

(30, 10.5)

(100, 10.5)

(20.1, 1.5)

(60, 19.5)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A soccer team is selling T‑shirts as a fundraiser. The table shows how the number of T-shirts they can expect to sell depends on x, the price of each T‑shirt. Which equation describes the relationship between the total number of dollars in T-shirt sales, y, and the price per T-shirt, x?

y =−5x2 + 140x

y = -5x2 + 92x

y = -5x2 + 100x

y = -5x2 + 60x

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which quadratic equation yields zeros of 3/4 and 5/3?

12x² - 29x + 15 = 0

12x² + 11x - 15 = 0

12x² + 29x + 15 = 0

12x² - 11x - 15 = 0

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The expected weekly profit for a certain swimming pool facility is a quadratic function of the price the facility charges per person. - The facility is expected to break even if it charges either $2 per person or $8 per person. - The facility is expected to lose $1,200 weekly if people can get in free. Which function f(x) models the facility’s expected weekly profit in dollars when charging x dollars per person, in the form that BEST reveals how the facility can maximize its profit?

f(x) = -1,200(x - 2)(x - 8)

f(x) = -75(x - 2)(x - 8)

f(x) = -75(x - 5)² + 675

f(x) = -75(x - 10)² + 6,300

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?