Unit 5B Assessment

Last updated over 3 years ago

15 questions

1

The expression –5x2 + 5x + 20 represents the height, in feet, of a paper airplane x seconds after its release from a rooftop.
What does 20 represent in this situation?

the time it took the paper airplane to hit the ground

the speed of the paper airplane

the initial height of the paper airplane

the distance the paper airplane traveled from the rooftop before descending

The length of a rectangle is 3k – 8, and the width of the rectangle is 3k – 1. Which choice represents the area of the rectangle?

9k2 + 27k – 8

9k2 + 27k + 8

9k2 – 27k + 8

9k2 – 27k – 8

The expression –5x2 + 25x + 70 can be used to estimate the height, in meters, of a toy rocket x seconds after it is launched from a platform. How many seconds does it take the rocket to hit the ground?

Which value of x is a zero for 9x2 + 6x + 1?

x = 1/3

x = –3

x = 3

x = -1/3

Which equation has a solution of 2/9?

(9x – 2)(x + 9) = 0

(2x + 9)(x + 2) = 0

(9x + 2)(x – 2) = 0

(2x – 9)(x – 9) = 0

The length of the rectangle below is represented by the expression (x + 7) and the width is represented by (x – 7).
The area of the rectangle is 32 ft2. What is the length of the rectangle?

7 ft

9 ft

16 ft

36 ft

Which graph represents the function f(x) = (x – 2)(x + 3)?

What are the solutions to the equation 7x2 – 22x = –3?

-1/7 and -3

1/7 and -3

-1/7 and 3

1/7 and 3

Which graphs shows a quadratic function with a y-intercept of 3 and an axis of symmetry at x = –1?

Which is an equation of the function graphed below?

y = –2x2 + 12x + 10

y = 2x2 + 12x + 10

y = –2x2 + 12x – 10

y = 2x2 + 12x – 10

The profit from selling tickets to a musical can be modeled by the function P(x) = –100x2 + 2,400x – 8,000, where x is the price per ticket, in dollars. What ticket price will maximize the profit?

$4

$12

$20

$16

A function is shown.

h(x) = –5x2 + 20x + 60

What is the maximum value of the function?

2

60

80

6

Which function has one positive and one negative root?

f(x) = 2x2 – x – 6

f(x) = 5x2 – 7x + 2

f(x) = x2 + 5x + 6

f(x) = x2 – 5x + 4

This is function p(x).

p(x) = –2x2 – 16x – 24

What is the vertex of the function?

(–2, –6)

(–4, –8)

(–4, 8)

(–2, 6)

The function f(x) = –2x2 + 10x models the height above the ground, in cm, of a jumping frog where x is the horizontal distance, in cm, the frog traveled during the jump. What was the horizontal distance, in cm, that the frog traveled during its jump?

The expression –5x2 + 5x + 20 represents the height, in feet, of a paper airplane x seconds after its release from a rooftop.
What does 20 represent in this situation?

the time it took the paper airplane to hit the ground

the speed of the paper airplane

the initial height of the paper airplane

the distance the paper airplane traveled from the rooftop before descending

The length of a rectangle is 3k – 8, and the width of the rectangle is 3k – 1. Which choice represents the area of the rectangle?

9k2 + 27k – 8

9k2 + 27k + 8

9k2 – 27k + 8

9k2 – 27k – 8

Which value of x is a zero for 9x2 + 6x + 1?

x = 1/3

x = –3

x = 3

x = -1/3

Which equation has a solution of 2/9?

(9x – 2)(x + 9) = 0

(2x + 9)(x + 2) = 0

(9x + 2)(x – 2) = 0

(2x – 9)(x – 9) = 0

The length of the rectangle below is represented by the expression (x + 7) and the width is represented by (x – 7).
The area of the rectangle is 32 ft2. What is the length of the rectangle?

7 ft

9 ft

16 ft

36 ft

Which graph represents the function f(x) = (x – 2)(x + 3)?

What are the solutions to the equation 7x2 – 22x = –3?

-1/7 and -3

1/7 and -3

-1/7 and 3

1/7 and 3

Which graphs shows a quadratic function with a y-intercept of 3 and an axis of symmetry at x = –1?

Which is an equation of the function graphed below?

y = –2x2 + 12x + 10

y = 2x2 + 12x + 10

y = –2x2 + 12x – 10

y = 2x2 + 12x – 10

The profit from selling tickets to a musical can be modeled by the function P(x) = –100x2 + 2,400x – 8,000, where x is the price per ticket, in dollars. What ticket price will maximize the profit?

$4

$12

$20

$16

A function is shown.

h(x) = –5x2 + 20x + 60

What is the maximum value of the function?

2

60

80

6

Which function has one positive and one negative root?

f(x) = 2x2 – x – 6

f(x) = 5x2 – 7x + 2

f(x) = x2 + 5x + 6

f(x) = x2 – 5x + 4

This is function p(x).

p(x) = –2x2 – 16x – 24

What is the vertex of the function?

(–2, –6)

(–4, –8)

(–4, 8)

(–2, 6)

Unit 5B Assessment

Unit 5B Assessment

The expression –5x2 + 25x + 70 can be used to estimate the height, in meters, of a toy rocket x seconds after it is launched from a platform. How many seconds does it take the rocket to hit the ground?

The function f(x) = –2x2 + 10x models the height above the ground, in cm, of a jumping frog where x is the horizontal distance, in cm, the frog traveled during the jump. What was the horizontal distance, in cm, that the frog traveled during its jump?

The expression –5x2 + 5x + 20 represents the height, in feet, of a paper airplane x seconds after its release from a rooftop.What does 20 represent in this situation?

The length of a rectangle is 3k – 8, and the width of the rectangle is 3k – 1. Which choice represents the area of the rectangle?

The expression –5x2 + 25x + 70 can be used to estimate the height, in meters, of a toy rocket x seconds after it is launched from a platform. How many seconds does it take the rocket to hit the ground?

Which value of x is a zero for 9x2 + 6x + 1?

Which equation has a solution of 2/9?

The length of the rectangle below is represented by the expression (x + 7) and the width is represented by (x – 7).The area of the rectangle is 32 ft2. What is the length of the rectangle?

Which graph represents the function f(x) = (x – 2)(x + 3)?

What are the solutions to the equation 7x2 – 22x = –3?

Which graphs shows a quadratic function with a y-intercept of 3 and an axis of symmetry at x = –1?

Which is an equation of the function graphed below?

The profit from selling tickets to a musical can be modeled by the function P(x) = –100x2 + 2,400x – 8,000, where x is the price per ticket, in dollars. What ticket price will maximize the profit?

A function is shown.h(x) = –5x2 + 20x + 60What is the maximum value of the function?

Which function has one positive and one negative root?

This is function p(x).p(x) = –2x2 – 16x – 24What is the vertex of the function?

The function f(x) = –2x2 + 10x models the height above the ground, in cm, of a jumping frog where x is the horizontal distance, in cm, the frog traveled during the jump. What was the horizontal distance, in cm, that the frog traveled during its jump?

The expression –5x2 + 5x + 20 represents the height, in feet, of a paper airplane x seconds after its release from a rooftop.
What does 20 represent in this situation?

The length of the rectangle below is represented by the expression (x + 7) and the width is represented by (x – 7).
The area of the rectangle is 32 ft2. What is the length of the rectangle?

A function is shown.

h(x) = –5x2 + 20x + 60

What is the maximum value of the function?

This is function p(x).

p(x) = –2x2 – 16x – 24

What is the vertex of the function?