How do you write an equation of a line through points (5, -2) and (0,-1)?
1 Answer
Explanation:
First of all find the slope of the two points.
#(y_2 - y_1)/(x_2 - x_1) #
Fill it in and the answer is:
#m = 1/(-5 ) = -1/5#
Now use point-slope form
#y - y_1 = m ( x - x_1 )#
Pick any the first two point and slop you have and fill it in
#y + 2 = -1/5 ( x - 5 )#
#y + 2 = -1/5x + 1#
#y = -1/5x -1 larr# slope-intercept form