Equation of line

  • Thread starter tehmatriks
  • Start date
  • #1
tehmatriks
40
0

Homework Statement


i just want to know how i go about it when the slope contains a whole number and a fraction, i.e. 1¼

Homework Equations


y - y1 = m(x - x1)


The Attempt at a Solution

 

Answers and Replies

  • #2
eumyang
Homework Helper
1,347
11
Change the number into an improper fraction. Do you know how to do that?

For instance,
[tex]2\frac{1}{3} = \frac{7}{3}[/tex]
 
  • #3
tehmatriks
40
0
i didn't no, but from the looks of it you multiply the whole number by the denominator and add the numerator

so i got it, much appreciated
 
  • #4
Dembadon
Gold Member
654
89
i didn't no, but from the looks of it you multiply the whole number by the denominator and add the numerator

so i got it, much appreciated

Another way to think of it:

"Two and one-third" = [itex]2+\frac{1}{3}[/itex] ("and" typically means addition)

Think of a fraction with a denominator of 3 that is also equal to 2.

[tex]\frac{6}{3}+\frac{1}{3}=\frac{7}{3}[/tex]

This is probably a bit more work than what's necessary, but I find it much more interesting. :biggrin:
 

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