Hi

I have some question i am having trouble with:

1)If the angle between the lines which passes through the points (-2,3) and (4,0) is:

A

B

C

D

E

2)Find the derivative of and values of x at which the derivative is zero

3)Let f be differentiable for all values of x in [2,0]. The graph with equation y=f(x) has a maximum point at (1,3). The equation of the tangent at (1,3) is:

A

B

C

D

E

P.S