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ccchristian1

  • one year ago

A pair of equations is shown below: y = 2x − 1 y = 4x − 5 Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points) Part B: What is the solution to the pair of equations? (4 points)

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  1. unknownunknown
    • one year ago
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    |dw:1433130233340:dw|

  2. unknownunknown
    • one year ago
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    That's a very rough sketch. But the idea is to graph both of the equations, and find where they intersect. That point of intersection is a solution to both equations.

  3. ccchristian1
    • one year ago
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    i dont get it

  4. ccchristian1
    • one year ago
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    @unknownunknown

  5. unknownunknown
    • one year ago
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    Okay so. Let's just start with one of the equations. y = 2x - 1. Can you graph that equation for me, by itself?

  6. ccchristian1
    • one year ago
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    m=2,b=−1 where m is the slope and b is the y-intercept

  7. ccchristian1
    • one year ago
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    @unknownunknown

  8. ccchristian1
    • one year ago
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    @unknownunknown

  9. ccchristian1
    • one year ago
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    @geerky42

  10. ccchristian1
    • one year ago
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    @UsukiDoll

  11. UsukiDoll
    • one year ago
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    I'm hoping OS doesn't kick me off again... if you don't see a response that is why. OS hates Firefox

  12. ccchristian1
    • one year ago
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    oo okay

  13. ccchristian1
    • one year ago
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    can you help me on this one though

  14. UsukiDoll
    • one year ago
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    sure. so we are solving a pair of equations using the graphing method. What you need to do is to graph each equation separately on the same sheet of paper . letting x be any value so you can find out what y is. The answer is when both equations share the same point.

  15. unknownunknown
    • one year ago
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    So Christian that's good you know m and b. And now the next step is to visualize them geometrically. So could you plot the graph for me, of y = 2x - 1?

  16. UsukiDoll
    • one year ago
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    with a chart.. x y = 2x -1 0 2(0)- 1 -> 0-1 = -1

  17. UsukiDoll
    • one year ago
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    let x be any value from x =0 to x = 3 and we plug it into the y =2x-1 to figure out what our y is.. then we have a point . Fore example, when x = 0, y =-1 so our coordinate point is (0,-1)

  18. ccchristian1
    • one year ago
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    okay so what do i do next ? after that

  19. UsukiDoll
    • one year ago
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    you have to do the same thing with the other equation

  20. ccchristian1
    • one year ago
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    m=4,b=−5

  21. ccchristian1
    • one year ago
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    so (4,-5)

  22. UsukiDoll
    • one year ago
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    no no no for y = 4x-5. let x = 0,1,2,3...... find the y values and plot them.. sorry I am freezing bad again with OS

  23. ccchristian1
    • one year ago
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    its okay and i have to write this in words

  24. ccchristian1
    • one year ago
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    its a question essay

  25. ccchristian1
    • one year ago
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    i just need help on how to type it

  26. unknownunknown
    • one year ago
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    Christians that's fine, but to understand it so you can write it in words, you should do as UsukiDoll is suggesting, and graph it first. Once you do that and can see what's happening, it will be very easy to explain it in words.

  27. UsukiDoll
    • one year ago
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    blame OS it just kicked me out of this question T_T

  28. unknownunknown
    • one year ago
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    </3

  29. ccchristian1
    • one year ago
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    whatever its okay guys

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