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MAC 1105 - Fernandez - Spring 25, section 003, Spring 2025
INSTRUCTOR
2.4 Varying The Coefficients: Direct Proportionali (Homework) Chessy Fernandez
Santa Fe College
Current Score
QUESTION 12 13 14 15 16 17 18 19 20 21
POINTS 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.76/4.76 4.8/4.
TOTAL SCORE
90.48/100 90.5%
Due Date
MON, FEB 3, 2025
11:59 PM EST
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Assignment Submission & Scoring
Assignment Submission
For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or
change the answer.
Assignment Scoring
Your best submission for each question part is used for your score.
1. [4.76/4.76 Points] DETAILS MY NOTES SCOLALGCC1CR 2.4.003.
PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER
A line has the equation y = 8x + 1.
(a) This line has slope 8 .
(b) Any line parallel to this line has slope 8 .
(c) Any line perpendicular to this line has slope -1/8 -1/8 .
https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=36205220&tags=autosave#question4451552_20 1/15
,3/2/25, 9:26 p.m. 2.4 Varying The Coefficients: Direct Proportionali - MAC 1105 - Fernandez - Spring 25, section 003, Spring 2025 | WebAssign
2. [4.76/4.76 Points] DETAILS MY NOTES SCOLALGCC1CR 2.4.004.
PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER
(a) If the quantities x and y are related by the equation y = 2x, then we say that y is directly proportional to x and the constant of proportionality is
2 .
(b) If y is directly proportional to x and if the constant of proportionality is 2, then x and y are related by the equation y = 2 x.
https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=36205220&tags=autosave#question4451552_20 2/15
,3/2/25, 9:26 p.m. 2.4 Varying The Coefficients: Direct Proportionali - MAC 1105 - Fernandez - Spring 25, section 003, Spring 2025 | WebAssign
3. [4.76/4.76 Points] DETAILS MY NOTES SCOLALGCC1CR 2.4.005. PREVIOUS ANSWERS ASK YOUR TEACHER
(a) Compare the slopes and y-intercepts of the lines l 1, l 2, l 3, and l 4. (Select all that apply.)
Which lines have the greatest slope?
l1
l2
l3
l4
none of the above
Which lines are parallel to each other?
l 1 and l 2
l and l
2 3
l 3 and l 4
l 1 and l 4
none of the above
Which lines are perpendicular to each other?
l 1 and l 2
l 2 and l 3
l 3 and l 4
l 1 and l 4
none of the above
(b) Compare the slopes and y-intercepts of the lines l 1, l 2, l 3, and l 4. (Select all that apply.)
Which line has the greatest slope?
https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=36205220&tags=autosave#question4451552_20 3/15
, 3/2/25, 9:26 p.m. 2.4 Varying The Coefficients: Direct Proportionali - MAC 1105 - Fernandez - Spring 25, section 003, Spring 2025 | WebAssign
l1
l2
l3
l4
none of the above
Which lines are parallel to each other?
l 1 and l 2
l 2 and l 3
l and l
3 4
l 1 and l 4
none of the above
Which lines are perpendicular to each other?
l 1 and l 2
l 1 and l 3
l 2 and l 3
l 2 and l 4
none of the above
4. [–/4.76 Points] DETAILS MY NOTES SCOLALGCC1CR 2.4.007. ASK YOUR TEACHER
True or false?
(a) If electricity costs $0.20 per kilowatt-hour, then the cost of electricity is directly proportional to the number of kilowatt-hours used.
True
False
(b) If a phone plan costs $5.85 per month plus $0.22 per minute, then the monthly phone cost is directly proportional to the number of minutes used.
True
False
(c) If the price of apples is $0.78 per pound, then the cost of a bag of apples is directly proportional to the weight.
True
False
(d) If the price of tomatoes is $2.96 per pound, then the cost of a box of tomatoes is directly proportional to the number of tomatoes in the box.
True
False
https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=36205220&tags=autosave#question4451552_20 4/15