Brown, this is the solution to the problem:
Let's recall that the form of equation for a line is:
y = mx + b
In consequence,
m = 4
Let's calculate b, as follows:
3 = 4 * 2 + b
3 = 8 + b
b = -8 + 3
b = -5
Therefore, the equation of the line that passes through the point (2, 3) with a slope of 4 is:
y = 4x - 5