Homework SourseFine the equation of a line pssing through points 17 and 23
Fine the equation of a line pssing through points (1,-7) and (-2,3). I know the formulas are y2-y1/x2-x1 and y-y1=m(x-x1) but I can\'t seem to get the right numbers. Not sure where I\'m messing up. Thank you.
Fine the equation of a line pssing through points (1,-7) and (-2,3). I know the formulas are y2-y1/x2-x1 and y-y1=m(x-x1) but I can\'t seem to get the right numbers. Not sure where I\'m messing up. Thank you.
Solution
Slope = (3 - (-7)) / (-2 - 1)
Slope = 10/-3
m = -10/3
So, we now have :
y - y1 = m(x - x1)
WE have slope, m = -10/3
and point (x1,y1) can be either of the points
Lets plug in :
y - 3 = -10/3(x + 2)
y - 3 = -10x/3 - 20/3
y = -10x/3 - 20/3 + 3
y = (-10/3)x - 11/3 ----> ANSWER
