C3 Chapter 2

Descripción

A Levels (Core 3) Maths Test sobre C3 Chapter 2, creado por Shanie Dickens el 21/08/2014.
Shanie Dickens
Test por Shanie Dickens, actualizado hace más de 1 año
Shanie Dickens
Creado por Shanie Dickens hace más de 9 años
27
2

Resumen del Recurso

Pregunta 1

Pregunta
If the domain and range is the equivalent of X and Y, which would be which?
Respuesta
  • X = domain Y = range
  • X = range Y = domain

Pregunta 2

Pregunta
Which mappings can be called a function?
Respuesta
  • one-to-many and many-to-many
  • many-to-many and many-to-one
  • one-to-one and many-to-one
  • many-to-one and one-to-many

Pregunta 3

Pregunta
The composite function fg(x) means that...
Respuesta
  • g acts on x first, then f acts on the result.
  • f acts on x first, then g acts on the result.

Pregunta 4

Pregunta
The composite function fg(x) means that...
Respuesta
  • g acts on x first, then f acts on the result.
  • f acts on x first, then g acts on the result.

Pregunta 5

Pregunta
To calculate the inverse function f(x)^-1, you...
Respuesta
  • times f(x) by -1.
  • divide f(x) by 1/x.
  • change the subject of the formula.
  • replacing x's with y's.

Pregunta 6

Pregunta
The graph of f(x)^-1 is ...
Respuesta
  • the reflection of f(x) in the line y = x.
  • perpendicular to f(x).
  • the same as f(x).
  • the reflection of f(x) in the line y = -x
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