Problema Solution
Find the slope of the line that passes through the points (-9,3)(6,4), give the equation of the line.
Answer provided by our tutors
A(-9,3) and B (6,4) are the points and
x1 = -9, y1 = 3
x2 = 6, y2 = 4
the slope m = change in y / change in x
m = (y2 - y1)/(x2 - x1)
m = (4 - 3)/(6 - (-9))
m = 1/15
the equation of the line is
y - y1 = m(x - x1)
y - 3 = (1/15)(x - (-9))
y = (1/15)x + (9/15) + 3
y = (1/15)x + 18/3