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anonymous

  • one year ago

find the x- and y-intercepts: 5y-x=10

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  1. Jamierox4ev3r
    • one year ago
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    to find the x-intercept of this equation, you'd want to set the y to zero. Likewise, to find the y-intercept, you'd want to set the x to zero.

  2. Jamierox4ev3r
    • one year ago
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    So for example, if you want to find your y-intercept, set the equation like this: 5y-0=10 ^ Here, we set the x to equal 0. Now, all you need to do is solve for y. Quite simple.

  3. anonymous
    • one year ago
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    so x-intercept is 2 and the y is -10?

  4. Jamierox4ev3r
    • one year ago
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    other way around. the y-intercept is -10 and the x-intercept is 2. But yes, the numbers are correct. Nice job! :)

  5. anonymous
    • one year ago
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    thanks

  6. Jamierox4ev3r
    • one year ago
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    No problem

  7. anonymous
    • one year ago
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    What about 2y+8x=-14?

  8. Jamierox4ev3r
    • one year ago
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    Apply the same rule: \(\color{green}{\ast}\)to find the x-intercept, zero the y \(\color{green}{\ast}\)to find the y-intercept, zero the x Try it on your own, I'll check your answers

  9. Jamierox4ev3r
    • one year ago
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    @tcorris do you need a hint?

  10. anonymous
    • one year ago
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    i have no idea

  11. Jamierox4ev3r
    • one year ago
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    alright. So you do understand what I mean by "zero-ing" right? Basically, you just replace the offending variable with a zero To find the y-intercept, your equation becomes this: 2y+8(0)=-14 You can simplify that to become 2y=-14 To find the x-intercept, your equation becomes this: 2(0)+8x=-14 You can simplify that to become 8x=-14 Then once both equations are simplified down, all you need to do is solve for x (to find the x-intrecept) and solve for y (to find the y-intercept)

  12. anonymous
    • one year ago
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    I can't tell for the x but is the y -7?

  13. Jamierox4ev3r
    • one year ago
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    the y-intercept is -7, that's correct

  14. Jamierox4ev3r
    • one year ago
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    I've already given you the equation to find the x-intercept, which is 8x=-14 to solve this, divide both sides by 8 to isolate the x 8x=-14 /8 /8 ------- x=?? now all you have to do is divide -14 by 8. that is your x-intercept. Does that make sense?

  15. anonymous
    • one year ago
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    -1.75?

  16. Jamierox4ev3r
    • one year ago
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    right! Just turn that into a fraction. which would be \(\Large\frac{-7}{4}\)

  17. Jamierox4ev3r
    • one year ago
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    and that is your x-intercept. Do you understand now? All you have to do to find your x and y intercepts every single time is to zero the x and y variables in your equation. Hope this makes sense

  18. anonymous
    • one year ago
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    for 3x+4= y would the x be -1.3 and the y be 4?

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