anonymous
  • anonymous
Find the slope of the line passing through the points (–1, 3) and (4, –7). 2 3/4 -4/3 -2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
there are a lot of questions like this on the OS look at them
anonymous
  • anonymous
Will Fan and Metal
anonymous
  • anonymous
Sara I wish I could Help But I can't Sorry D:

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anonymous
  • anonymous
Each point is written (x,y). The formula for the slope of a line is \[\frac{y _{2}-y _{1}}{x _{2}-x _{1}}\] The little two means it's the y or x-coordinate for the 2nd point you pick.
anonymous
  • anonymous
Please tell me if you still don't understand
anonymous
  • anonymous
Could u explain it a little more
anonymous
  • anonymous
Take the x and y coordinates (first and second number in the parentheses) and plug them into the formula I gave you.
kc_kennylau
  • kc_kennylau
First point is (-1,3), second point is (4,-7). \[\Large\text{slope}=\frac{\text{change in y}}{\text{change in x}}\]
anonymous
  • anonymous
ok what next
kc_kennylau
  • kc_kennylau
What is the \(\Large\text{change in y}\)?
anonymous
  • anonymous
3?
kc_kennylau
  • kc_kennylau
No, that is the \(\Large\text{original y}\)
anonymous
  • anonymous
I dont understand
kc_kennylau
  • kc_kennylau
Okay, when we go from the point (-1,3) to (4,-7)
kc_kennylau
  • kc_kennylau
The y-value changed from 3 to -7, right?
anonymous
  • anonymous
yea
kc_kennylau
  • kc_kennylau
Does it make sense to you that \(\Large\text{change in y = new y - original y}\)?
kc_kennylau
  • kc_kennylau
Let's plug those numbers in
anonymous
  • anonymous
ok thanks

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