Question

Write the equation of the line that passes through (2, 4) and (1, –3) in slope-intercept form

Answer 1

y = m x + b

m = delta y / delta x
m = y1 -y0/ x1 - x0
m = 4 - (-3) / 2 - 1
m = 7/1
m = 7

y = 7 x + b
4 = 7 * 2 + b
4 = 14 + b
b = - 10

y = 7 x - 10