anonymous
  • anonymous
5x+9y+4=0 has the x intercept -4/5 and the y intercept -4/9 It defines a straight line of slope ???????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Put the equation in slope-intercept from (meaning solve it for y). The slope is then the coefficient of the x term.
anonymous
  • anonymous
Sorry, previous post should have said slope-intercept "form", not "from"
anonymous
  • anonymous
is slope mx+b

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anonymous
  • anonymous
slope is m. b is the y-intercept
anonymous
  • anonymous
ok so how would i set this up as a formula
anonymous
  • anonymous
If I understand your question correctly, you just need to re-arrange the equation you already have to put it in slope-intercept form. First, you need to eliminate any terms that don't include "y" from the left side of the equation, so you would subtract "5x" and "4" from both sides. Second, You would divide both sides by 9 to eliminate the 9 on the left. That would put your equation in slope-intercept form.
anonymous
  • anonymous
At that point, you can identify "m", which is the slope of your line. "m" is the number or fraction in front of the x term when the equation is in slope-intercept form.
anonymous
  • anonymous
ok so the equation right now should be y= -5x-4
anonymous
  • anonymous
After subtraction, you would have: 9y=-5x-4 Then, after division, you would have: y=-5/9 x - 4/9
anonymous
  • anonymous
ok so the slope would be -5/9?
anonymous
  • anonymous
Correct
anonymous
  • anonymous
ok thanks that makes sense
anonymous
  • anonymous
5x+9y+4=0 \[y=(-5x-4)/9\] \[y= (-5/9)x - 4/9\] m= -5/9 b = -4/9

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