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1.
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What is the parent function for  ?
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2.
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What is the parent function for  ?
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3.
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Compared to the graph of  , the graph of  is _______. a. | translated down | c. | translated up | b. | translated left | d. | translated
right |
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4.
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Compare the graph of  with the graph of  . a. | The graph of g(x) is translated 2 units right from the graph of
f(x). | b. | The graph of g(x) is translated 2
units left from the graph of f(x). | c. | The graph of g(x) is
narrower. | d. | The graph of g(x) is wider. |
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5.
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a. | 
The transformations are a shrink and a
reflection. | c. | 
The transformations are a translation and
a reflection. | b. | 
The transformations are a translation, a
reflection, and a shrink. | d. | 
The transformations are a shrink and a
translation. |
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6.
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Write a function that transforms  in the following
way: vertical stretch by a factor of 4 and shift 4 units left.
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7.
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What are the y-intercepts of the graphs of the functions? Equation
A 
Equation B
 a. | A:  , B:  | c. | A:  , B: 2 | b. | A: 2, B:
0 | d. | A: 1, B:
2 |
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8.
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Write an equation of the line. 
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9.
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Write an equation of the line. 
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10.
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Decide which linear function is increasing at a greater rate. Explain your
answer. --Linear Function 1 has an x-intercept of –3 and a y-intercept of
5. --Linear Function 2 includes the points in the table.
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11.
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The cost of a school banquet is $85 plus $12 for each person attending. Write an
equation that gives total cost as a function of the number of people attending. What is the cost for
49 people?
a. | y = 12x + 85; $673 | c. | y = 12x – 85;
$503 | b. | y = 85x – 12; $4153 | d. | y = 85x + 12;
$4177 |
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12.
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Paul pays $273 in advance on his account at the athletic club. Each time he uses
the club, $8 is deducted from the account. Write an equation that represents the value remaining in
his account after x visits to the club. Find the value remaining in the account after 16
visits.
a. | V = 8 – 273x; $145 | c. | V = 273 – 8x;
$2214 | b. | V = 273 – 8x; $2200 | d. | V = 273 – 8x;
$145 |
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13.
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The cost to fill a car’s tank with gas and get a car wash is a linear
function of the capacity of the tank. The costs of a fill-up and a car wash for three different
customers are shown in the table. Write an equation for the function in slope-intercept form. Then,
find the cost of a fill-up and a car wash for a customer with a truck whose tank size is 31
gallons. Tank size (gal)
(x) | Total cost
($)
f(x) | 9 | 19.85 | 14 | 29.35 | 20 | 40.75 | | |
a. |  ; Cost for truck = $61.65 | b. |  ;
Cost for truck = $64.50 | c. |  ; Cost for truck =
$17.88 | d. |  ; Cost for truck =
$67.35 |
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14.
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Describe the correlation illustrated by the scatter plot.  a. | positive correlation | c. | no correlation | b. | negative correlation | d. | cannot
determine |
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15.
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Which equation best fits this data set? 
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16.
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The table shows the number of customers at an ice cream shop and the number of
sundaes sold. Which is the best line of fit for the data? 
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17.
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The cost of a prepaid cell phone plan from 123-Phone includes an activation fee
plus a cost per minute. The total costs are represented in the table below.
123-PhoneMinutes Used (t) | Total Cost (f(t)) | 0 | $7.50 | 1 | $7.55 | 2 | $7.60 | 3 | $7.65 | 4 | $7.70 | | |
ABC-Phone also charges an activation fee plus
a rate per minute. The total cost for ABC Phone’s plan when t minutes are used is
given by  . Part A: Write a
statement comparing the y-intercepts of these functions. Explain how you found your
answer. Part B: What is the meaning of each y-intercept in the context of the
real-world situation? Compare the y-intercepts in this context. Part C:
Function f is represented by a table and g is represented by an equation. Show
at least two different ways to represent f and g in the same way. Explain how to
determine the y-intercepts from each representation.
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18.
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Does the system of equations below have one solution, infinitely many solutions,
or no solution? Explain. 
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19.
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A small business has three employees who decorate pastries. Carlotta earns $11
per hour and decorates 12 pastries each hour on average. James earns $10 per hour and decorates 11
pastries each hour on average. Melissa was recently employed and earns $8 per hour. She decorates 7
pastries each hour on average. In one week, the employees worked for 96 total hours, decorated 1016
pastries, and earned a total of $960 in wages. How many hours did each employee work that
week?
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20.
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Dining room sets consisting of armchairs, side chairs, and a table are sold at a
local furniture store. A set with 2 armchairs, 4 side chairs, and a table is sold for $940. A set
with 4 side chairs and a table is sold for $740. A set with 4 armchairs, 2 side chairs, and a table
is sold for $1020. What are the individual prices of an armchair, a side chair, and a table? How
would you spend a budget of $900 to buy a dining room set?
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