find the slope of the line that passes though the points (6,1) and (9,-10)

Answer 1

slope = m = 11/-3 = -11/3

y = (-11/3)x + b, where b = y intercept, plug in either point to calculate b

1 = (-11/3)6 + b

b = 23

y = -(11/3)x + 23

or multiply by 3 to eliminate fractions

11x + 3y = 69