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  • Water boils at 100 degrees Celsius or 212 degrees Fahrenheit, and freezes at 0 degrees Celsius or 32 degrees Fahrenheit. Normal body temperature is 98.6 degrees Fahrenheit. What Celsius temperature is this?
  • Follow me and i will show you!
  • If you look at the board you can see that you should use the equation y=mx+b.
  • y=mx+b To find m in the equation, you have to do y(2)-y(1) divided by x(2)-x(1). In this situation you have to do 32-212 divided by 0-100. That will give you -180 over 100. when you divide that is gives you -1.8. m=-1.8.
  • But what about b?
  • well if y=32, m=-1.8, and x=0 the equation comes out to be 32=-1.8(o)+b. Now you solve for b.
  • 32=-1.8(0)+b 32=b
  • So our equation is y=-1.8x+32?
  • Yes that is correct!
  • If that is our equation, then to find the body temperature in Celsius our equation would be 98.6=-1.8x+32 right?
  • Yup that is right!!! But what is the answer?
  • umm..... x=-37?
  • "Are you asking me or telling me?" - Mr.Neild
  • correct, see it was not that hard.
  • Telling you.
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