SOLUTION: For the systems of linear equations in questions 1-3 - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any)

SOLUTION: For the systems of linear equations in questions 1-3 - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two

Question 377471: For the systems of linear equations in questions 1-3
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
1. (8 points) 4x = 8 and 5y = 15
2. (8 points) 0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3
3. (8 points) x/3 - y/5 = 4 and 3x/4 + 2y/3 = 6

Found 2 solutions by nyc_function, Alan3354:
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
BIG TIP: Post one question at a time or else no will reply. Which of the questions here would you like to me answer?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Another tip:
If you try to do a problem and show your work, instead of just asking for "help" (meaning do this for me) most tutors will give you priority.
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Also, how many points it is is of no interest to us.
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dl the FREE graph software at
http://www.padowan.dk.com
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- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
1. (8 points) 4x = 8 and 5y = 15
4x = 8 --> x = 2
5y = 15 --> y = 3
1 solution, (2,3)
x = 2 is "vertical", parallel to the y-axis. x-int at (2,0)
No y-intercept
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y = 3 is "horizontal", parallel to the x-axis. y-int at (0,3)
No x-intercept
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