Y2CH2 Functions and graphs

Question 1

When a number is within
y = |f(x)|

Answer 1

All values of x even negative will lead to a positive y value

Question 2

y = |3x-2|

Answer 2

Graph is all in positive y axis, reflecting from the x axis

Question 3

When working out the point of intersection of a modulated function and normal function you must,

Answer 3

Multiply by -1 to the function that has been reflected and intersected with another function

Question 4

What are the only two types of functions

Answer 4

One to one

Many to one

Question 5

What is domain and range

Answer 5

Domain - is all possible input
Range - all possible outputs

Question 6

What is a composite function

Answer 6

A function within a function

Question 7

What is an inverse function

Answer 7

The opposite of a function

Question 8

How do you find the domain and range of an inverse function

Answer 8

Domain = range of normal function

Range = domain of normal function

Question 9

How to you sketch y = f(|x|)

Answer 9

reflect at y-axis