anonymous
  • anonymous
How do I find coordinate points that represent the x and y intercepts of the inear function y=-3x-5?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
when y= 0, what does x have to be? when x = 0 what does y have to be?
anonymous
  • anonymous
answers could be (-5,0) and (0,-5/3), or (-5/3,0)and (0,-5), or (-5,0)and (-5/3,0), or (-5/3,0)and (-5,0)
amistre64
  • amistre64
there is only one answer :) when y = 0 the equation looks like this: 0 = -3x -5 solve for "x" when x = 0 the equation looks like this: y = -3(0) -5 y = 0-5 y = -5 ; so when x = 0, what does "y" equal?

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anonymous
  • anonymous
1/5 ......? but why
anonymous
  • anonymous
no, wait, that can't be right. aaarrgh.
amistre64
  • amistre64
you write out what you are doing to solve it, and ill let you know where you are going astray..
anonymous
  • anonymous
I don't even know where to begin That's my problem.
anonymous
  • anonymous
anyone there?
amistre64
  • amistre64
you begin by plugging in a value of x=0 or y=0 into the equation and solving for the other variable.
amistre64
  • amistre64
x = 0 is usually a good be another more simplistic manner is to get the equation into the form: Ax + By = C y=-3x-5 become 3x +y = -5 3(0) + y = -5 ; y = -5 (0,-5) AND 3x + 0 = -5 3x = -5 x = -5/3...... (-5/3,0)

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