vocab functions

Different kinds of functions

Polynomial functions

Linear function

Quadratic function

Reciprocal function

Trigonometric : Sine and Cosine

Square root function

Absolute value or modulus

Exponential function

Logarithm function

Even / Odd functions

GraphsTo sketch / to draw a graph

Slope or gradient of a line

x-axis ; y-axis ;

x-coordinate ; y-coordinate ;

x-intercept or root ; y-intercept

Parabola ; hyperbola

A vertex or a turning point ; a stationary point

Line/ Axis of symmetry

Symmetric(al) about a point or a line

Tangent to the curve

Asymptotic to a line

Concave up or down

Functionf: x → f (x ) , x ∈ D

f maps to / goes to f of x ,

x belongs to the domain D

Variations and Calculus

Derivative of f ; f dash x ; f prime of x

Increasing on the interval......

Decreasing from …. to.....

Maximum or minimum (pl : maxima and minima)

The limit of f as x tends to plus or minus infinity

Algebra

The discriminant

The roots or zeros

Forbidden value ( it's meaningless...)

To expand

To factorize