Rates Of Change

Question 0

If the value of dy is positive at x=a then y is what? dx

Answer 0

Increasing at x=a

Question 1

If f(x) = x^n what does f’(x) equal?

Answer 1

nx^n-1

Question 2

Points where dy =0 is called?

dx

Answer 2

Stationary points

Question 3

If d^2y is bigger than 0 the point is?

dx^2

Answer 3

A local minimum

Question 4

If d^2y is less than 0 the point is?

dx^2

Answer 4

A local maximum

Question 5

What does optimisation mean?

Answer 5

Getting the best result