Finding and using Maclaurin series

1. Construct a straight line [math]y=a+bx[/math] which is a good approximation at the point where [math]x=0[/math][br][br]2. Find a quadratic [math]y=a+bx+cx^2[/math] which is a good approximation to [math]y=e^x[/math] [br][br][i]It should go through (0,1), in addition it should have the same derivative at (0,1) and the same second derivative at (0,1)[/i]

Information: Finding and using Maclaurin series