Quiz about Algebra 1 Georgia Milestone Review Day 5

Question 1

Which of the following represents the solutions to the following quadratic function:
3x² - 8x + 5 = 0

Accepted Answer

1, 1.67

Answer

2.67, 1

Answer

-1.67, 6

Answer

-6, -.5

Question 2

Which of the following represents the solutions to the following quadratic function:
9k² = 225

Accepted Answer

-5, 5

Answer

4

Answer

4, -4

Answer

25, -25

Question 3

Find the discriminant of the following equation:

3x² - x - 2 = 0

Accepted Answer

25

Answer

5

Answer

-24

Answer

-26

Question 4

The discriminant of a quadratic equation is -12.  How many solutions will it have?

Accepted Answer

No Real Solutions

Answer

2 Real Solutions

Answer

1 Real Solution

Answer

Cannot be determined

Question 5

The discriminant of a quadratic equation is 0.  How many solutions will it have?

Accepted Answer

1 Real Solution

Answer

2 Real Solutions

Answer

No Real Solutions

Answer

Cannot be determined

Question 6

The discriminant of a quadratic equation is 40.  How many solutions will it have?

Accepted Answer

1 Real Solution

Answer

2 Real Solutions

Answer

No Real Solutions

Answer

Cannot be determined

Question 7

Create the explicit formula for the sequence:
2, 8, 14, ...
(Hint: a_n = dn + a_{0 . . .} or . . . a_n = a₀ + dn)

Accepted Answer

an=6n-4

Answer

an=2+6n

Answer

an=-6+6n

Answer

an=4-6n

Question 8

Identify the common difference.
3, 7, 11, 15, ...

Accepted Answer

4

Answer

6

Answer

5

Answer

2

Question 9

What is the common ratio for the sequence:
28, 14, 7, 3.5...

Accepted Answer

1/2

Answer

2

Answer

-14

Answer

-7

Question 10

Is the sequence geometric or arithmetic?
3, 6, 9, 12...

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Question 11

You have $10 in you bank account.  It doubles every month.  How much money will you have after 5 months?

Accepted Answer

$320

Answer

$50

Answer

$35

Answer

$250

Question 12

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

Accepted Answer

y = 40x + 150

Answer

y = 150 + 40

Answer

y = 150x + 40

Question 13

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

Accepted Answer

y = 15(1.35)^x

Answer

y = 15(35)^x

Answer

y = 15(0.35)^x

Answer

y = 35(1.15)^x

Question 14

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

Accepted Answer

y=15,000(0.92)^x

Answer

y=8(15,000)^x

Answer

y=15,000(1.08)^x

Answer

y=15,000(0.08)^x

Question 15

The function f(t) = -5t²+20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?
Hint: What value of t makes f(t) = 0

Accepted Answer

9 seconds

Answer

4 seconds

Answer

-2 seconds

Answer

-6 seconds

Question 16

The function f(t) = -5t²+20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?
f(t) = 0

Accepted Answer

9 seconds

Answer

4 seconds

Answer

-2 seconds

Answer

-6 seconds

Question 17

Is the following number rational or irrational?
7

Accepted Answer

Rational

Answer

Irrational

Question 18

Is the following number rational or irrational?
100/89

Accepted Answer

Rational

Answer

Irrational

Question 19

Find the vertex y = x² - 6x + 5
Remember, x = -b/2a.
Then plug-in x to find y.

Accepted Answer

V(3, -4)

Answer

V(-3, 8)

Answer

V(-3, - 10)

Answer

V(3, 5)

Question 20

What is the vertex?

Accepted Answer

(-2,-1)

Answer

(-1,-2)

Answer

(-3,-1)

Answer

(2,1)

Question 21

What is the vertex for the parabola represented by the equation
y = 2(x + 3)² - 8?

Accepted Answer

(-3, -8)

Answer

(3, 8)

Answer

(3, -8)

Answer

(-3, 8)

Question 22

Find the median of the data:
53, 62, 30, 30, 64

Accepted Answer

53

Answer

52

Answer

30

Answer

48

Question 23

What percentage of the data is between 40 and 150?

Accepted Answer

100%

Answer

25 %

Answer

50%

Answer

75%

Question 24

Which of the following functions will eventually grow the fastest?

Accepted Answer

y = 3x

Answer

y = x2

Answer

y = 2

Answer

y = 5x

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