Top answers


How do I use the chain rule to differentiate polynomial powers of e?

e (x ^2+2) =f(x)=y Is the equation we will use to demonstrate correct use of the chain rule. The equation at the core of the chain rule is: dy/dx=dt/dx*dy/dt Seeing that dt as a numerator and dt as a denomin...
JO
Answered by Joshua O. Maths tutor
6129 Views

How do you find the coordinates of stationary points on a graph?

First differentiate the function: y = f(x) => dy/dx = f'(x) Then set dy/dx = 0 and find the solutions. i.e. solve 0 = f'(x) For each value of x that is a solution, substitute back into f(x) to get the y c...
DK
Answered by Daniel K. Maths tutor
9651 Views

Explain briefly the Normal Distribution

Firstly, understanding how to construct a histogram will make understanding the Normal Distribution aka Gaussian Distribution much easier. It is still an arrangement of a data set in which most values cluste...
HJ
Answered by Han Jim Z. Maths tutor
5356 Views

How do you find the equation of a tangent to a curve at a particular point?

Imagine being given the equation y=x 3 -2x+3, and being asked to find the tangent to the curve at the point where x=1. The tangent to the curve will be a straight line, and therefore will take the form y=mx+...
JD
Answered by Jonathan D. Maths tutor
68255 Views

How can I tell if two lines are perpendicular from the equations?

In order to compare two equations they need to be in the same form. This means that the y's have to be on the left, and the x's have to be on the right - so the first step is to rearrange both of the equatio...
BS
Answered by Ben S. Maths tutor
8262 Views