Please do help me with this Calculus subject. Show solutions clearly. I promise to give a perfect score as a feedback. Please do help me please. Thank you...

1. The slope of the tangent line at any point (x,y) on a curve is 3. If the point (9,4) is on the curve, find an equation of the curve.

2. A ball is thrown vertically upward from the ground with an initial velocity of 39.2 m/sec. If the only force considered is that attributed to the acceleration due to gravity, find:

a) How long will the stone be going upward, and how high will the stone go?

b) the speed with which will it strike the ground?

c)how high the ball rise?