Algebra test 11A

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Algebra test 11A

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1. Brianne is buying gifts for 5 friends. She can spend $100 at most. She has already spent $28 on one of the gifts. If she wants to spend the same amount on each of the other 4 gifts, what can she spend at most on each gift? *

$18

$25

$14.40

$125

2. The box-and-whisker plot above shows heights in inches of students in a math class. What is the interquartile range? *

(IQR = third quartile - first quartile)

-13

3. Simplify the above expression. *

1/3y^4

3y^2

1/3y^3

3y^4

1/3y^2

4. Simplify the above expression *

9a^5b^4

9a^6b^4

9ab^12

5. Simplify the above expression *

-p^2 - 6p^2q

7p^2 + 6p^2q

p^2 - 9p^2q

-p^2

6. Simplify the above expression *

mn+ n

m^2n^4 + 4m^2n

m^2/n^2 + n^4

mn^3 + 4n

7. Simplify the above expression *

-c^2

c^2

0.00c

8. Factor the poynomial in the expression above.

2x ( 2x + x^2)

2x^2 ( 2 + x)

2x^3 ( x^3)

2x^4 ( 4x + 2x^2)

Clear selection

9. What is the slope of a line that contains the points (-4, 6) and (1, 5)? *

- 1/5

-5

1/5

10. Is the ordered pair (-3,1) a solution for the following system of equations: 2x + y = -4 and y - 3x = 10 *

yes

11. Write the equation of the graphed line in slope intercept form. (hint: y = mx + b) *

y = 3x + 2

y = 3x - 2

y = 1/3x + 2

y = 1/3x - 2

12. A block in the shape of a cube has a volume of 8 cubic inches. What is the side length of the block? *

2 inches

4 inches

1 inch

6 inches

13. Simplify the above expression. *

z = 12

z = 14

z = 13

z= 15

14. Solve for c: -12 - 18c = -6 (3c + 2) *

c = 2

no solution

all real numbers

c = 4

c= a hot cup of coffee

15. Solve for x: 4 = -2x - 8 *

x = -6

no solution

all real numbers

x = 5

x = 31

16. A clothing store purchases T-shirts for $4.00 each and then marks up the price of each by 55%. How much are they marking up each shirt? *

$2.00

$4.00

$2.20

$3.50

17. Megan reads a book at a constant speed, as shown in the table above. What is the rate of change? *

4 pages per minute

2 pages per minute

1 page per minute

6 page per minute

100 pages per minute

18. Write in point-slope form the equation of a line that has a slope of 2 and passes through the point (3,1) *

y - 1 = 2(x - 3)

y - 3 = x - 2

y - 2 = 3( x - 1)

y - 13 = 6( x - 31)

19. Is the following sequence an arithmetic sequence? 6, 1, -4, -9,... *

yes

20. What is the common difference and the next two terms for the sequence above? *

It is not an arithmetic sequence.

d = 4; terms = -13, -17

d= -5; terms = -14, -19

d= -10; terms = -19, -29

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