anonymous
  • anonymous
The x-intercept of a line is -5 and the y-intercept of the line is -2. What is the equation of the line?
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Well, if you know that the line stops at (-5,0) and (0,-2), you can find the slope by taking the change in y over the change in x. The slope is then -2/5. Then, you take the x of one coordinate and put it into the equation, finding what must be added to get y. -2/5*0=0. To get -2, you would need to subtract 2. Therefore, b is -2. So your line, in y=mx+b form, is y=-2/5x-2. Hope this helps!
anonymous
  • anonymous
it does thanks so much!! i have two more problems i dont get can you help me?
anonymous
  • anonymous
Sorry, I was eating lunch.

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anonymous
  • anonymous
I can try the other problems
anonymous
  • anonymous
ok thanjs! i have no clue on this one Write an equation of the line perpendicular to the given line that contains P. y space equals space 1 fifth x space plus space 1; P(2, -7)
anonymous
  • anonymous
but i think this one Write the equation of the line parallel to the given line containing point P. y space equals space 8 x space minus space 1; P(-6, 2) is y=8x+50
anonymous
  • anonymous
youre supposed to use point slope from for both!
anonymous
  • anonymous
Okay, so for the first line you need to find the slope. A perpendicular slope is the reverse, so instead of 1 over 5 it is negative 5 over 1, or -5.
anonymous
  • anonymous
Do both lines in the first problem contain P??
anonymous
  • anonymous
yeah
anonymous
  • anonymous
is it -5x+3??
anonymous
  • anonymous
and is the second one right??
anonymous
  • anonymous
Yep!! Good job!! :)
anonymous
  • anonymous
for which one??
anonymous
  • anonymous
so the first and second are both right??
anonymous
  • anonymous
Both!!
anonymous
  • anonymous
thanks!!!!!!!!

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