Answer
yes it does.
Explanation
The equation of a straight line is in the form of Y = mX + c, where m is a constant (the gradient) and c is the y-intercept.
The equation above, y= 4x +3 is the equation of a straight line.
y ∝ x
Introducing the constant of proportionality now become y = 4x. When like this the a line is a straight line from the origin but when we add 3 in the equation we have. Y = 4X + 3.
The equation remains proportional. This time the line passes through the point (0,3).
