Further Math AQA

Question 1

Different ways of saying Gradient

Answer 1

Rate of change • dy/dx • f ‘ (x)

Question 2

Second derivative definition

Answer 2

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

Question 3

When is a point the minimum turning point?

Answer 3

If the value of the second derivative is greater than 0

Question 4

How to find the equation of the tangent to a curve

Answer 4

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

Question 5

Normal meaning

Answer 5

Perpendicular to tangent

Question 6

Tangent meaning

Answer 6

Straight line that touches the outside of the curve

Question 7

When can you multiply matrices?

Answer 7

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

Question 8

When can you add/subtract matrices?

Answer 8

When the type of the matrices are the same

Question 9

Distance between 2 points formula

Answer 9

√(x2 – x1)² + (y2 – y1)²