How do you graph the line given (2, -1) with slope of 3?

1 Answer
Noel B. · Stefan V.
Apr 25, 2016

You plot the coordinates then use the slope of #3# as #3/1#

Explanation:

To plot the point, move #2# to the right on the #x#-axis then #1# down (#y#-axis). Then look at the slope. #3# is also equal to #3/1# (3 over 1) as a fraction.

In a fraction there are two parts, the numerator (top number in this case #3#) and the denominator (bottom number in this case #1#).

The numerator shows the rise (number of spaces you go along the #y#-axis) and the denominator shows the run (number of spaces you go along the #x#-axis).

So from the point #(2,-1)#, you go up (since it is a positive slope) #3# spaces and to the right #1# space.

graph{3x-7 [-10, 10, -5, 5]} .

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