How do you write the equation of the line with slope m = 3 and including point (3, 5)?
The equation of a line is
which we can substitute back in to give
y = 3x - 4
One form of the equation of a line is : y - b = m(x - a )
where m represents the gradient (slope ) and (a,b) a point on the line.
here m = 3 and (a,b) = (3,5)
substituting these values into the equation.
y - 5 = 3(x - 3) → y - 5 = 3x - 9 → y = 3x - 4