# Aa1 Final Exam

19 Questions | Total Attempts: 42

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This is the final exam for the spring semester 2009 of Advanced Algebra 1. You may use a calculator only. Good Luck!

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• 1.
Simplify –x-13x
• A.

-14x

• B.

-13x

• C.

13x

• D.

12x

• 2.
Solve :
• A.

12.5

• B.

7.5

• C.

36

• D.

18

• 3.
Solve the equation for x:   -8 = 3(-x+5)-x
• A.

23/4

• B.

23/2

• C.

8/11

• D.

-7/4

• 4.
Choose the set of lines that are perpendicular:
• A.

Y=(2/3)x+1 and y=(3/2)x + 6

• B.

Y=(-1/2)x-5 and y=2x

• C.

Y=(2/3)x-2 and y=(2/3)x+10

• D.

Y=5x+1 and y=-5x+6

• 5.
Evaluate –(cd) for c = -5 and  d= 3
• A.

-5

• B.

5

• C.

-15

• D.

15

• 6.
Choose the ordered pair that is a solution of 3x – 2y = 8.
• A.

(-4,-2)

• B.

(2,1)

• C.

(8,6)

• D.

(2,-1)

• 7.
What is the equation of the line that passes through the point (2, -4) and has a slope of 1/2?
• A.

Y=1/2x-5

• B.

Y=1/2x-6

• C.

Y=1/2x+5

• D.

Y=1/2x-3

• 8.
Find the slope of the line passing though the points (7, 2) and (8, 6).
• A.

-4

• B.

4

• C.

-1/4

• D.

1/4

• 9.
If  y=4x-2 and 7x-2y=1, then x = _________.
• A.

1

• B.

3

• C.

10

• D.

0

• 10.
Simplify (4xy4)3 (xy)4(FYI:  For the answer choices, x^4 is the same thing as x4)
• A.

4 x^4 y^16

• B.

64 x^7 y^16

• C.

64 x^7 y^8

• D.

4 x^7 y^8

• 11.
A company’s projected worth (in millions of dollars) is modeled by the equation y=236(1.07)x.   The variable x represents the number of years since 1997.  What is the projected annual percent of growth, and what should the company be worth in 2007?
• A.

7%; \$433.88 million

• B.

17%; \$252.52 million

• C.

17%; \$496.75 million

• D.

7%; \$464.25 million

• 12.
Which equation is in slope-intercept form?
• A.

X-y=4

• B.

Y-1=3x

• C.

X=-2y+5

• D.

Y=3x-1

• 13.
A summer carnival charges a \$4 admission fee and \$0.50 for each ride.  If Talia has \$12 to spend, how many rides can she go on?
• A.

4

• B.

16

• C.

8

• D.

12

• 14.
Which exponential model shows a 12% increase for each period of time?(**Remember that the ^ symbol represents an exponent)
• A.

Y=50(1.4)^t

• B.

Y=12(1.4)^t

• C.

Y=50(1.12)^t

• D.

Y=12(.88)^t

• 15.
You deposit \$450 into a savings account that pays 6% interest compounded yearly.  How much money is in the account after 6 years?
• A.

\$477.00

• B.

\$638.33

• C.

\$693.33

• D.

\$602.20

• 16.
Which graph is the graph of an exponential equation?
• A.

A

• B.

B

• C.

C

• D.

D

• 17.
Which graph is the graph of an equation that has a constant rate of change?
• A.

A

• B.

B

• C.

C

• D.

D

• 18.
Which graph is the graph of an absolute value function?
• A.

A

• B.

B

• C.

C

• D.

D

• 19.
Which graph is called a parabola?
• A.

A

• B.

B

• C.

C

• D.

D