Question

Question 1 (Multiple Choice Worth 4 points)

[9.01] When the quadratic equation y = (x − 4)(2x + 5) is written in standard form, what is the value of the coefficient "b"?

2

3

−3

−20

Question 2 (Multiple Choice Worth 4 points)

[9.01] Identify which equation is a quadratic equation.

y = −6x − 3

y + x2 = (x − 1)(x + 7)

y − 9 = (x − 1)(x2 + 4)

y = 5x(x + 3) − 8

Question 3 (Multiple Choice Worth 4 points)

[9.02] What are the solutions of x2 − 3x − 18 = 0?

x = 3, x = −6

x = −3, x = 6

x = 3, x = 6

x = −3, x = −6

Answer 1

Question 1 (Multiple Choice Worth 4 points)

[9.01] When the quadratic equation y = (x − 4)(2x + 5) is written in standard form, what is the value of the coefficient "b"?

2

3

−3

−20

Question 2 (Multiple Choice Worth 4 points)

[9.01] Identify which equation is a quadratic equation.

y = −6x − 3

y + x2 = (x − 1)(x + 7)

y − 9 = (x − 1)(x2 + 4)

y = 5x(x + 3) − 8

Question 3 (Multiple Choice Worth 4 points)

[9.02] What are the solutions of x2 − 3x − 18 = 0?

x = 3, x = −6

x = −3, x = 6

x = 3, x = 6

x = −3, x = −6

Question 4 (Multiple Choice Worth 4 points)

[9.02] What are the x-intercept(s) of the graph of y − x2 = −8x − 9?

(−1, 0) and (9, 0)

(1, 0) and (−9, 0)

(−1, 0) and (−9, 0)

(1, 0) and (9, 0)

Question 5 (Multiple Choice Worth 4 points)

[9.02] What are the solutions of 6x2 − x − 2 = 0?

x = , x = −

x = −, x =

x = , x = −1

x = −, x = 2

Question 6 (Multiple Choice Worth 4 points)

[9.02] Solve 2x2 = −10x.

x = 2, x = −5

x = 2, x = 5

x = 0, x = 5

x = 0, x = −5

Question 7 (Multiple Choice Worth 4 points)

[9.01] What is the vertex for the graph of y = 3x2 − 12x + 9?

(−2, 21)

(−2, 45)

(2, −3)

(2, −9)

Question 8 (Multiple Choice Worth 4 points)

[9.01] Determine whether the graph of y = 2x2 − 5x + 8 opens up or down and whether it has a maximum or minimum point.

Down and Maximum

Down and Minimum

Up and Minimum

Up and Maximum

Question 9 (Multiple Choice Worth 4 points)

[9.01] The graph of which equation is shown below?

http://learn.flvs.net/webdav/assessment_images/educator_algebra1_v10/09_04_17.jpg

y = x2 − 4x + 1

y = x2 + 4x + 1

y = −x2 − 4x + 1

y = −x2 + 4x + 1

Question 10 (Essay Worth 7 points)

[9.01], [9.02] Part 1: Solve each of the quadratic equations below. Show your work. (3 points)

x2 – 36 = 0 and x2 = 8x – 12

Part 2: Describe what the solution(s) represent to the graph of each. (2 points)

Part 3: How are the graphs alike? How are they different? (2 points)




Question 11 (Essay Worth 7 points)

[9.01], [9.02] Create your own unique quadratic equation in the form y = ax2 + bx + c. Use complete sentences and show all work to determine the following:

Does the graph open up or down? How do you know? (2 points)
Explain whether the graph has a maximum or minimum point. (2 points)
Find the vertex and x-intercepts of the graph. (3 points)

Answer 2

wooooooooooow .-.

Answer 3

I suck at math. big time. lol

Answer 4

i hate math

Answer 5

me too

Answer 6

here http://openstudy.com/study#/updates/4ffafcbce4b058f8b766b419

Answer 7

just google it

Answer 8

that didnt help, and google doesnt help either... -.-

Answer 9

why how when where who