anonymous
  • anonymous
find the x- and y-intercepts: 5y-x=10
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Jamierox4ev3r
  • Jamierox4ev3r
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.
Jamierox4ev3r
  • Jamierox4ev3r
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.
anonymous
  • anonymous
so x-intercept is 2 and the y is -10?

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Jamierox4ev3r
  • Jamierox4ev3r
other way around. the y-intercept is -10 and the x-intercept is 2. But yes, the numbers are correct. Nice job! :)
anonymous
  • anonymous
thanks
Jamierox4ev3r
  • Jamierox4ev3r
No problem
anonymous
  • anonymous
What about 2y+8x=-14?
Jamierox4ev3r
  • Jamierox4ev3r
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
Jamierox4ev3r
  • Jamierox4ev3r
@tcorris do you need a hint?
anonymous
  • anonymous
i have no idea
Jamierox4ev3r
  • Jamierox4ev3r
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)
anonymous
  • anonymous
I can't tell for the x but is the y -7?
Jamierox4ev3r
  • Jamierox4ev3r
the y-intercept is -7, that's correct
Jamierox4ev3r
  • Jamierox4ev3r
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?
anonymous
  • anonymous
-1.75?
Jamierox4ev3r
  • Jamierox4ev3r
right! Just turn that into a fraction. which would be \(\Large\frac{-7}{4}\)
Jamierox4ev3r
  • Jamierox4ev3r
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
anonymous
  • anonymous
for 3x+4= y would the x be -1.3 and the y be 4?

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