1.) Find the point on the line6x+4y3=0which is closest to the point(4,1)

2.)Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabolay=3x^2

3.) A piece of wire 12 m long is cut into two pieces. One piece is bent into the shape of a circle of radiusrand the other is bent into a square of sides How should the wire be cut so that the total area enclosed is:

a) a maximum?r= and s=