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Unit 3 Practice Test

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Last updated almost 3 years ago
15 questions
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FORMULAS:

Question 1
1.

Question 2
2.

Write an equation for the line on the graph below in slope-intercept form.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Question 7
7.

Rewrite the equation 2x+3y=15 in slope-intercept form:

Question 8
8.

Question 9
9.

Leslie joins a fitness club that has an initial fee of $20 plus a monthly fee of $15. Rashad’s club charges $40 initially plus $10 per month. In how many months will the clubs cost the same?

Question 10
10.

Carla has $200 in her bank account. Each week, she withdraws $20.
Use function notation to write a linear function that represents the amount of money Carla has left in her account after a certain number of withdrawals (x).
Use f(x)=

Then graph the function by using the sketch tools.

Question 11
11.

Question 12
12.

Question 13
13.

Question 14
14.

The Environmental Club is selling water bottles for $8 each and tote bags for $12 each to raise a total of $240 to donate to charity.
Let w = the number of water bottles
Let t = the number of tote bags
Write the linear equation for the fundraising goal.
And use the sketch tools to graph the function.

Question 15
15.

Graph the inequality:
Use the sketch tools.

Find the x-intercept and y-intercept of 4x+2y=20.

(Select TWO answers)
(0,2)
(4,0)
(0,10)
(5,0)
Which inequality matches the graph shown below?
Which of these shows y=-2x+5 in standard form?
Compare the three functions:

Select ALL the statements that are TRUE for the functions:
The line for f(x) is steeper than the line for h(x).
The y-intercept for g(x) is zero.
The line for f(x) goes down and to the right.
The graph shows the daily sales goal of a coffee shop. If the employees sell 20 cups of coffee, how many cups of tea must they sell to meet their goal?
20
50
40
25
Identify the slope and the y-intercept of the equation:

(Select two answers)
(0, 8)
m=-1
(0,1)
m=8
(0,-1)
m=1
The graph shows the account balance as a function of the number of monthly payments for a person who starts with $1000 in an account and has to pay a cell phone bill of $25 every month.
Find the x-intercept and explain its meaning in this problem.
(0,1000) The amount of money the person has when they start paying the bill
(20,500) In twenty months the account will have $500
(40,0) The number of months for the account to have a balance of zero.
The graph shows the account balance as a function of the number of monthly payments for a person who has $1000 in an account and has to pay a cell phone bill of $25 every month.
Find the y-intercept and explain its meaning in this problem.
(0,1000) The amount of money the person has when they start paying the bill
(40,0) The number of months for the account to have a balance of zero.
(20,500) In twenty months the account will have $500
The graph shows the account balance as a function of the number of monthly payments for a person who has $1000 in an account and has to pay a cell phone bill of $25 every month.
Give the Domain and Range for this problem
Domain: {0≤x≤25}Range: {y≤1000}
Domain: {0≤x≤40} Range: {0≤y≤1000}
Domain: {x≤40}Range: {y≥0}