# Algebra

Buses on your route run every 13 minutes from 7:00 a.m. you arrive at the bus stop at 8:46 a.m. How long will you wait for your next bus ?
a 2 minutes
b 6 minutes
c 7 minutes
d 11 minutes ***

What is the domain of the function {(–1, 1), (0, 0), (1, 2)}?
a {-1, 0, 1 } ****
b {-1, 0, 1, 2}
c {0, 1, 2}
d {(-1,1), (0, 0), (1,2)}

Suppose that the function f(x) = 5x + 3 represents the number of cars that drive by in x minutes . How many cars will drive by in 10 minutes
a 80
b 53***
c 50
d 35

A candy store keeps track of its sales during the month of October . The table shows the number of sales for the first, second, third, and fourth weeks of the month . Which graph could represent the data shown ?
1 I 97
2 I 168
3 I 259
4 I 375

A
B
C ****
D
MY ANSWERS HAVE *** NEXT TO THEM, please check them if you can . Thank you in advance :)

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1. A. Is correct (11 minutes)

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2. The others are ok too
As for the last, no idea, since no graphs

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3. 1. Buses on your route run every 8 minutes from 7:00 a.m. to 11:00 a.m. You arrive at the busstop at 8:19 a.m. How long will you wait for a bus?(1 point)1 minute3 minutes7 minutes8 minutes2. What is the domain of the function {(–1,– 1), (0, 1), (2, –1)}? (1 point)(–1, 1){–1, 0, 2}{–1, 0, 1, 2}{(–1, –1), (0, 1), (2, –1)}3. Suppose that the function f(x) = 6x + 4 represents the number of cars that drive by in x minutes.How many cars will drive by in 10 minutes?(1 point)6010046644. A zoo is keeping track of the weight of a baby elephant. The table shows the weight for thefirst, second, third, and fourth weeks. Which graph could represent the data shown in thetable?WeekCandy Sales197216832594375(1 point)5. The table shows the amount of money made by a summer blockbuster in each of the first fourweeks of its theater release. Which graph could represent the data shown in the table?(1 point)6. In the diagram below, what is the relationship between the number of parallelograms, n, andthe perimeter, P, of the figure they form?(1 point)The equation for the perimeter is P = 10n + 4.The equation for the perimeter is P = 4n + 10.The equation for the perimeter is P = 4n + 5.The equation for the perimeter is P = 10n + 87. The table shows the relationship between the number of number of members in a group andthe total length of the presentation in minutes.Minutes Points58101215202026Is the relationship a function that is increasing or decreasing? Is the relationship a function thatis linear or non-linear?(1 point)increasing; linear increasing; non linear decreasing; linear decreasing; non linear 8. The ordered pairs (1,1),(2,8),(3,27),(4,64),and (5,125) represent a function. What is a rulethat represents this function?9. The ordered pairs (1, 3), (2, 6), (3, 9), (4, 12), and (5, 15) represent a function. What is a rulethat represents this function?(1 point)10. Bananas are on sale for \$0.40 a pound, and you have a coupon for \$0.25 off your totalpurchase. Write a function rule for the cost of n pounds. How much would 30 pounds ofbananas cost?(1 point)C(n) = 0.25n – 0.40; \$7.10 C(n) = 0.4n – 0.4; \$11.60 C(n) = 0.4n – 0.25; \$11.75 C(n) = 0.4n; \$12.00 11. Identify the mapping diagram that represents the relation and determine whether a relation is a function.(1 point)12. The function b(n) = 12n represents the number of baseballs b(n) that are needed for n games. How many baseballs are needed for 15 games?(1 point)27 baseballs 150 baseballs 180 baseballs 200 baseballs 13. Tell whether the sequence is arithmetic. If it is, what is the common difference?2, 7, 13, 20, . . .(1 point)yes; 5 yes; 6 yes; 2 No 14. Tell whether the sequence is arithmetic. If it is, what is the common difference?19, 12, 5,-2No Yes; 1/7 Yes; 7 Yes; -7 15. Grass seeds grow rapidly. A grass seed has grown to a 12 millimeter tall blades of grass.Tomorrow it will be 23 millimeters tall, the next day it will be 34 millimeters tall, and on thenext day it will be 45 millimeters tall. Write a rule to represent the height of the blade of grassas an arithmetic sequence. How tall will the blade of grass be in 15 days?(1 point)A(n) = 16 + (n – 1)11; 194 millimeters A(n) = 12 + (n – 1)11; 166 millimeters A(n) = 13n; 195 millimeters A(n) = 12n; 180 millimeters 16. A rental car company charges \$150.00 for a weekly rental and an additional \$0.20 for eachmile driven. The function rule C = 0.20m+ 150.00 describes the relationship between thenumber of miles driven m and the total cost C. If the rental car can only be driven a maximumof 200 miles, what is a reasonable graph of the function rule?(1 point)17. What is the graph of the function rule?(1 point) y = |5x| – 2 18. In the diagram below, what is the relationship between the number of rectangles and theperimeter of the figure they form?(1 point) Example 1 Example 2 Example 3 Example 4

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