April 19, 2014

Homework Help: Calculus - Maths

Posted by xxCeLoL on Monday, November 26, 2007 at 7:00am.

I got a few questions.
Hope ya'll can help out.

1) for F(X) = 6x - 2x^2
Find the gradient of the chord joining the point where the X coorinates are 1 and (1+h) respectively.

b) hence find the gradient at x=1

2) Find the Coordinates of the point on the curve Y=1/2x^3 - 3/2x^2 +2x +1
at which the tangent:

a) is parallel to the X axis
b) makes an angle with the x axis whose tangent is 2
c) is parallel to y - 6x - 1 = 0

3) Find the equation of the tangent and normal to y= SQUARE-ROOT(x) at the point where X= 4

4) Find the equations of the tangents to
Y = 1/3x^3 - x^2 - x + 1
At the points where the tangent is parallel to Y - 7x = 5

5) Find dy/dx for y^3 - xy + 7 = 8
find the gradient when X = 0

I know this is quite a few questions.
I've missed out on so much from maths I don't understand A LOT of these questions. So any help in advance (even 1 question) will be MUCH appreciated!!!

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