GIVEN: y = 3x + 5
--> slope of given line = 3
--> This means that your equation must have the same slope, or "m"
FORMULA OF A LINE: y = mx + b
--> Use point-slope form to find "b"
POINT SLOPE FORM: y - y₁ = m ( x - x₁ )
--> Plug in your given point AND the slope of the given line
y - 5 = 3 ( x - 4 )
y - 5 = 3x - 12
y = 3x - 7
ANSWER: y = 3x - 7