Question

A line passes through the point (8,6) and has a slope of - 3. Write the equation of the line in point-slope form,

4

Answer 1

y=mx+b
substitute the x- and y-values into the equation
(8,6)
8 is x-value and 6 is y-value

6=m(8)+b
slipe is given, it's -3 so substitute that into the equation as well

6=3(8)+b
6=24+b
substract 24 from both sides
-18=b

equation: y=3x-18