Question 769995
Remember the formula for point-slope form: {{{y - y1 = m(x - x1)}}} where m is the slope of the line, and (x1, y1) is our reference point.

In your problem, m = 2, x1 = 4, y1 = 5
{{{y - 5 = 2(x - 4)}}}

Now just solve for y:
{{{y = 2x - 8 + 5}}} or, more simply, {{{y = 2x - 3}}}