All the equations can be graphed and solved by graphing. They can also be solved using various other methods
M=slope
b=y-intercept
y and x are coordinates
hope this helps, that is a much as I can give you with this little of information
The time of flight of a half projectile motion is given by V0 sin θ / g = 15(sin 45) / 9.8 = 1.08 seconds.
