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SephI

  • 3 years ago

Solve graphing.

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  1. SephI
    • 3 years ago
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    \[y = - \frac{ 3 }{ 2}x + 4\] How would I solve that? How would I do the Rise over Run when my fraction is negative?

  2. SephI
    • 3 years ago
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    @DarienCollup @Solmyr @Faman39 @KatherinePierce1864 @AlexPR787 @dennisjr

  3. SephI
    • 3 years ago
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    @lovekblue

  4. Hero
    • 3 years ago
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    Graph the first three points, then draw a line through them

  5. SephI
    • 3 years ago
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    HOw would I graph the fraction part?

  6. Hero
    • 3 years ago
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    You're focusing too much on the "fraction part". What you will be graphing are points on a line.

  7. Hero
    • 3 years ago
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    Remember, you still have y = mx + b, which is the formula for a line. The fraction part only represents the slope of the line.

  8. SephI
    • 3 years ago
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    Huh? What do you mean?

  9. SephI
    • 3 years ago
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    My school is telling me that I would graph (0, 4) and then graph the fraction with rise over run, but the fraction is negative and I don't know how to work with it.

  10. Hero
    • 3 years ago
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    Just focus on graphing the points.

  11. Hero
    • 3 years ago
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    Focus on the x and y intercepts

  12. SephI
    • 3 years ago
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    I don't understand.

  13. SephI
    • 3 years ago
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    Wouldn't I graph 4?

  14. Hero
    • 3 years ago
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    You found one of the points: (0,4)

  15. Hero
    • 3 years ago
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    Now find the x-intercept. Set y = 0, then solve for x

  16. SephI
    • 3 years ago
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    Uhhh..

  17. Hero
    • 3 years ago
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    Do you have any clue what's going on here?

  18. SephI
    • 3 years ago
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    I'm left with a fraction still. I don't know how to graph that fraction. I know it would be an rise over run process, but the fraction is negative. That changes it for me.

  19. JayDS
    • 3 years ago
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    What you need to graph is a straight line and the most important parts relating to it such as the x and y intercepts if they are any, in this case there are both.

  20. SephI
    • 3 years ago
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    What happens when the fraction is negative? Does it change? Would I make the 3 negative? Would both the numbers be negative?

  21. SephI
    • 3 years ago
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    I'm not graphing both the intercepts. It says graph the y-intercept first, and graph the slope, which is the fraction?

  22. JayDS
    • 3 years ago
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    just the 3 is negative.

  23. JayDS
    • 3 years ago
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    When you graph the two intercepts and connect them, it will automatically contain the slope/gradient of the line.

  24. SephI
    • 3 years ago
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    so (-3, 2)

  25. Hero
    • 3 years ago
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    \[y = - \frac{ 3 }{ 2}x + 4\] \[0 = - \frac{ 3 }{ 2}x + 4\] \[\frac{ 3 }{ 2}x = 4\] \[\frac{ 3x }{ 2} = 4\] \[3x = 8\] \[x = \frac{8}{3}\] \[x = 2\frac{2}{3}\]

  26. JayDS
    • 3 years ago
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    Slope/gradient is found by \[M = \frac{y2-y1}{x2-x1}\] or rise/run your rise is -3 and run is 2

  27. Hero
    • 3 years ago
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    So the other point is \[(2.67, 0)\]

  28. SephI
    • 3 years ago
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    I think it just wants one answer .-.

  29. SephI
    • 3 years ago
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    This is basic 9th grade math.

  30. Hero
    • 3 years ago
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    No, you need at least two points to graph a line. You can't graph a line with only one point.

  31. Hero
    • 3 years ago
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    Didn't your teacher go over this with you?

  32. SephI
    • 3 years ago
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    I mean, I think they want me to find the rise over run by graphing (-3, 2) and 4.

  33. Hero
    • 3 years ago
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    You already have the rise over run

  34. Hero
    • 3 years ago
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    -3/4 is the rise over run

  35. SephI
    • 3 years ago
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    So: \[-\frac{ 3 }{ 2 } = \frac{ -3 }{ 2 }\] Is this correct? When dealing with a negative fraction in rise over run, the top number becomes negative when putting it into an ordered pair?

  36. SephI
    • 3 years ago
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    ?

  37. Hero
    • 3 years ago
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    Ask your teacher about it. You are too confused.

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