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Analiza

  • 3 years ago

What is the slope of the line 5x - 2y = -10?

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  1. ash2326
    • 3 years ago
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    Could you rearrange the equation such that, it's of the form \[y=mx+c\] ?

  2. Analiza
    • 3 years ago
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    Idk how to.

  3. ash2326
    • 3 years ago
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    divide whole equation by -2

  4. Analiza
    • 3 years ago
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    Even the 5x?

  5. JayDS
    • 3 years ago
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    rearrange it into the form of y = mx + c so 5x - 2y = -10 5x + 20 = 2y 2y = 5x + 20 y = 5/2x +20/2 y = 5/2x + 10 now the m = gradient or slope that you can read from the last line of the rearranged equation so what is it?

  6. ash2326
    • 3 years ago
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    yeah

  7. JayDS
    • 3 years ago
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    try it yourself and then check with mine.

  8. Analiza
    • 3 years ago
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    I got x=1?

  9. JayDS
    • 3 years ago
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    show me ur working out @Analiza?

  10. GiggleSquid
    • 3 years ago
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    sorry to stike you down jay

  11. Analiza
    • 3 years ago
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    I got confused, how m I supose to divide -2y & 5x?

  12. JayDS
    • 3 years ago
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    can you understand the steps I did?

  13. JayDS
    • 3 years ago
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    5x - 2y = 10 so we want y to be on one side so we will have to +2y on both sides 5x -2y + 2y = 10 + 2y 5x = 10 + 2y now we have to minus 10 on both sides 5x - 10 = 10 -10 + 2y 5x - 10 = 2y now we are going to rewrite it 2y = 5x - 10 this is same as the previous step but just swapping them around y = 5/2 - 10/2 divide both sides by 2 y = 5/2x - 5

  14. JayDS
    • 3 years ago
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    lets try an easier sample, say 2x + y = 1, and rearrange into the form on y= mx + c

  15. laxkid
    • 3 years ago
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    slope is \[\frac{5}{2}\]

  16. JayDS
    • 3 years ago
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    yes, @laxkid we figured that out already

  17. JayDS
    • 3 years ago
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    I can see that you have trouble rearranging basic equations, so I think you should start by doing some exercises.

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