What is the slope of the line between (-1, 5) and (2, 3 )?

1 Answer
Nam D.
May 3, 2018

#-2/3#

Explanation:

The slope of a line #(m)# is given by the equation:

#m=(y_2-y_1)/(x_2-x_1)#

  • #(x_1,y_1)# are the first coordinates

  • #(x_2,y_2)# are the second coordinates

It doesn't matter which values do you choose for #x_1# or #x_2#, just remember to match them with their corresponding partners of #y_1# and #y_2#, respectively.

So here, the slope will be,

#m=(3-5)/(2-(-1))#

#=-2/3#

Even if we switch the first and second coordinates around, it still works:

#m=(5-3)/(-1-2)#

#=2/-3#

#=-2/3#

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