anonymous
  • anonymous
How do I put this into slope intercept form? (2, 120) (4, 240) 120-240/2-4 =60
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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campbell_st
  • campbell_st
well thats the slope m the point slope form of a line is y = mx + b m = slope and b = y-intercept to calculate b, choice a point say (2, 120) and substitute into y = 60x + b to find the value of b when you have done that you'll have your line in point slope form.
anonymous
  • anonymous
I did that and this is what I get: y=mx+b 120=60(2)+b 120=120+b 0=b ?? I'm just confused.
campbell_st
  • campbell_st
thats correct so whats th equation of the line..?

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campbell_st
  • campbell_st
remember its y = mx + b you've found m = 60 and b = 0 just substitute for the equation
anonymous
  • anonymous
??? I don't know... so... y = 60x + 0 ????
anonymous
  • anonymous
or is it just y=60x ??? Thank you for your help, by the way, :)
campbell_st
  • campbell_st
thats it.... to check its correct use the other point (4, 240) subsitiute x = 4 and you should get y = 240

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