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Quiz Review
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Indicate the answer choice that best completes the statement or answers the question.
SNOWFALL Use the graph below. It shows the depth in feet of snow after each two-hour period during a snowstorm.
1. Find the slope of the line.
a. 4 b. c. – d. –4
2. Does the graph show a constant rate of change? Explain.
a. No; the slope is the same between each pair of points.
b. No; the slope is not the same between each pair of points.
c. Yes; the slope is the same between each pair of points.
d. Yes; the slope is not the same between each pair of points.
3. HOMES Find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet.
a. –3 b. – c. d. 3
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Find the slope of the line that passes through each pair of points.
4. E (4, 0), F (5, 5) a. 5 b. c. – d. –5
5. C (3, 5), D (2, 6) a. 1 b. c. 0 d.
6. MOUNTAINS Find the slope of a mountain that descends 100 meters for every horizontal distance of 1,000 meters.
a. –10 b. c. d. 10
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7. Find the slope of the line.
Class: Date: a. b. c. – d. –
8.
Determine whether the linear function is a direct variation. If so, state the constant of variation.
a. yes; 19 b. no
9. INSECT CONTROL Mr. Malone used 40 pounds of insecticide to cover 1,760 square feet of lawn and 60 pounds to cover an additional 2,640 square feet. About how many pounds of insecticide would Mr. Malone need to cover his whole lawn of 4,480 square feet?
a. 880 lb b. 102 lb c. 44 lb d. 20 lb
GEOMETRY Use the diagram shown.
10. Graph the equation.
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Indicate the answer choice that best completes the statement or answers the question.
State the slope and the y -intercept for the graph of the equation.
11. – x + y = 4 a. 1; 4 b. 4; 1 c. –1; 4 d. –1; 1
Graph each equation using the slope and y -intercept.
12. y = –2 x + 2 a.
Date: b.
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State the x - and y -intercepts of the function.
13. – x –  y = a. x -intercept ; y -intercept b. x -intercept ; y -intercept c. x -intercept ; y -intercept d. x -intercept ; y -intercept
14. –10 x – 10 y = –20 a. x -intercept 2; y -intercept 2 b. x ­intercept –2;  y -intercept 2 c. x -intercept 2; y ­intercept –2 d. x ­intercept –2;  y ­intercept –2
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15. –  x –  y = 12 a. x -intercept 48; y -intercept 36 b. x -intercept 36; y -intercept 48 c. x -intercept 48; y -intercept 36 d. x -intercept 48; y -intercept 36
16. 6 x – 2 y = –18 a. x -intercept 3; y -intercept 9 b. x -intercept 3; y -intercept 9 c. x -intercept 9; y -intercept 3 d. x -intercept 3; y -intercept 9
17. MONEY Monty has a total of $290 in ten dollar and five dollar bills. This can be represented by the function 10 x
+ 5 y = 290. Interpret the x - and y -intercepts.
a. The x -intercept indicates that he has 58 ten dollar bills and no five dollar bills. The y -intercept indicates that he has 29 five dollar bills and no ten dollar bills.
b. The x -intercept indicates that he has 29 ten dollar bills and no five dollar bills. The y -intercept indicates that he has 29 five dollar bills and no ten dollar bills.
c. The x -intercept indicates that he has 29 ten dollar bills and no five dollar bills. The y -intercept indicates that he has 58 five dollar bills and no ten dollar bills.
d. The x -intercept indicates that he has 5 ten dollar bills and no five dollar bills. The y -intercept indicates that he has 10 five dollar bills and no ten dollar bills.
Use any strategy to solve.
18. VOLUNTEERING Greg helps his mother deliver care baskets to hospital patients each Saturday. Last Saturday at noon they had three times as many baskets left to deliver as they had already delivered. If they were delivering a total of 64 baskets that day, how many had they delivered by noon?
a. 8 baskets b. 16 baskets c. 32 baskets d. 192 baskets
19. STATES Of the 50 United States, 14 have coastlines on the Atlantic Ocean, 5 have coastlines on the Gulf of
Mexico, and one state has coastlines on both. How many states do not have coastlines on either the Atlantic
Ocean or the Gulf of Mexico?
a. 33 states b. 32 states c. 31 states d. 18 states
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20. Bretty earned $105 by selling x hot dogs and y spring rolls. Each hot dog costs $2.00 and each spring roll costs
$1.50. The relationship can be represented by the function .
Use the x - and y -intercepts to graph the function.
a. b. c. d.
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