A line has a slope of–1and passes through the point (5, –8) What is its equationin slope-intercept form?

Answer 1

y=-x + b

-8 =-5 + b

b = -8+5 = -3

y=-x-3 is the equation of the line with slope -1 through the given point, in slope intercept form

or more explicitly

y = (-1)x -3 where -1 = slope and -3 = the y intercept

plug in the point (5,-8)

-8 = (-1)(5)-3 = -5-3 = -8