Quiz about Big Ideas Algebra Chapter 8 Review

Question 1

Question 1.

Accepted Answer

44/3

Answer

43/4

Answer

24/3

Answer

23/4

Question 2

What is the vertex of this quadratic equation?
y = 2(x - 2)² + 5

Accepted Answer

(2,5)

Answer

(-2,5)

Answer

(5,-2)

Answer

(-5,-2)

Question 3

Does this graph have a maximum or minimum?

Accepted Answer

Minimum

Answer

Maximum

Question 4

What are the x- intercepts?

Accepted Answer

x= 0 and x= 4

Answer

x= 0 and x= -4

Answer

y= 0

Answer

x= 2

Question 5

(2x + 5y - z) + (-6x - 4y + 7z)

Accepted Answer

-4x + y + 6z

Answer

-4x +6y + 6z

Answer

4x + y + 6z

Answer

-4x - y + 6z

Question 6

Your 3 year investment of $20,000 received 5.2% interest compounded annually. What is your total return? Hint: Use equation $$y=P\left(1+r\right)^t$$ and you need to divide the % by 100.

Accepted Answer

$23,285.05

Answer

$3,285.05

Answer

$2,385

Answer

$32,285

Question 7

Factor
k²+7k+10

Accepted Answer

(k+2)(k+5)

Answer

(k-2)(k-5)

Answer

(k+10)(k+4)

Answer

(k+2)(k-5)

Question 8

Factor
3v² - 4v - 7

Accepted Answer

(3v-7)(v+1)

Answer

3(v-7)(v-1)

Answer

(3v+1)(v-9)

Answer

(3v+1)(v-10)

Question 9

factor:x²- 25

Accepted Answer

( x + 5 ) ( x - 5 )

Answer

( x - 5 ) ( x - 5 )

Answer

( x + 5 ) ( x + 5 )

Answer

Prime

Question 10

What is the vertex of the graph?

Accepted Answer

(3, -1)

Answer

(2, 4)

Answer

(0, 8)

Answer

(4, 2)

Question 11

What's the y-intercept of y = 3x²- 6x + 4

Accepted Answer

(0,4)

Answer

(4,0)

Answer

(-4,0)

Answer

(0,-4)

Question 12

What is the vertex of $$y=x^2+4x+3$$ ? need to use $$x=\frac{-b}{2a}$$ then plug in x and solve for y.

Accepted Answer

(-2,-1)

Answer

(2,1)

Answer

(-2,1)

Answer

(0,0)

Question 13

What is the axis of symmetry of $$y=2x^2-4x+9$$ ? Hint: Use $$x=-\frac{b}{2a}$$

Accepted Answer

x = 1

Answer

x = -1

Answer

x = -2

Answer

x = 4

Question 14

What functions describes this graph?

Accepted Answer

Exponential

Answer

Linear

Answer

neither

Question 15

Which function describes the graph?

Accepted Answer

Linear

Answer

Exponential

Answer

neither

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