# Further Math AQA Flashcards

Different ways of saying Gradient

Rate of change • dy/dx • f ‘ (x)

Second derivative definition

Used to determine whether a point is the maximum or the minimum

When is a point the minimum turning point?

If the value of the second derivative is greater than 0

How to find the equation of the tangent to a curve

• Differentiate • Find Gradient • Find C (when y = (Gradient x 𝑥) + C) • Form the equation (y=mx + c)

Normal meaning

Perpendicular to tangent

Tangent meaning

Straight line that touches the outside of the curve

When can you multiply matrices?

If the number of columns in the first matrix = the number of rows in the second matrix

When can you add/subtract matrices?

When the type of the matrices are the same