Unit 4 Test Reflection Instructions:
Log into Sapphire. Click on Intermediate Math C. Click on your grade:
Next to the Unit 4 Test, Click View Test/Assignment, Click View Test/Assignment again on the next screen
If you missed question 1, go to question 1 on this document and type corrections on this document. Repeat with all questions that you missed.
Complete 1 entire row for each question you missed, every column. Type your answers on this document. Correct ONLY the questions you missed.
Save this document on your computer. (Click File, Save)
Send this document to Mrs. Horn in a kmail. Make the Subject “Unit 4 Test Reflection”. Under the Subject, it says Attach Files. Click Attach Files and attach this
document to the kmail.
If you need help or have questions, please kmail Mrs. Horn. Unit 4 Test Reflection is due 3/27/15
THIS IS AN EXAMPLE:
Original Problem
Question 1:
Which ordered pair is a solution to this
equation?
3x + 4y = 15
Explain in words what mistake you made and
how you will correct it
I substituted the numbers in for the wrong
variables. I should have put the first number
in for x and the second number in for y
Solve the problem and show your work
where applicable
3(3) + 4(-7) = -19
9 – 28 = -19
-19 = -19
A. (3, -7)
A.
B.
C.
D.
(3, -7)
(-3, 7)
(4, 3)
(5, 8)
Original Problem
Question 1:
What are the slope and the y-intercept of this
equation:
y = -4x - 7
Question 2:
What is the slope-intercept form of this
equation?
4x + 2y = 12
Question 3:
What is the equation of Line D?
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 4:
What is the equation of the line in slope
intercept form?
Question 5:
Connie runs at a constant speed. The table
shows the distance she travels at different
times during her run. What is the slope of the
line that represents Connie's speed?
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 6:
What is an equation in point-slope form
for the given point and slope?
Point: (2, -5) Slope: -4/5
Question 7:
The graph shows the amount of drink mix
that was added to water at different intervals.
What is the equation of the line in slopeintercept form that represents this situation?
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 8:
What is Mrs. Stewart’s favorite color (it’s on
the website)
Question 9:
How much does Val's candy cost, per pound?
Question 10:
Solve the equation for y, show your work:
10x + 5y = 30
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 11
What does the slope of a line represent?
Question 12
Doris has a savings account at her local
bank. She started with $500 and deposits
$150 every month. The equation below
shows her balance, b, after m months.
What is the balance in Doris' account after
4 months?
b = 150m + 500
Question 13
The Stewarts need to rent a truck. The Pink
and Purple Truck Company charges $35 a day
(d) plus a $60 one-time fee. What is a linear
equation to show the total cost (y) to rent the
truck?
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 14
What kind of slope will the line have that goes
through these points?
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Original Problem
Question 15
What is the slope of the line that passes
through these 2 points?
(-2,3) and (2, -5)
Question 16
Explain in words what mistake you made and Solve the problem and show your work
how you will correct it
where applicable
Part 2:
The No-Crash Rental Company says the total cost to rent a dump truck can be found using the equation y = 35x + 90, where x represents the number
of days that the truck is rented.
Please answer these questions:
1. What does the 35 represent in this equation?
2. How much would it cost to rent a truck for 5 days? Please show or explain how you got your answer.
3. How many days could I rent the truck for a total of $370? Please show or explain how you got your answer.