C4 Graphs

Question 1

The order of the polynomial is what?

Answer 1

Its highest power

Question 2

What are the features to be considered when sketching any graph?

Answer 2

Shape (positive or negative)
Roots
y-intercept

Question 3

Asymptote

General Equation

Answer 3

A line which the graph approaches but never reaches
y=1/x
y=a/x

Question 4

How does -1/x squared change the original graph

Answer 4

It’s just a reflection of original graph in the x axis

original graph is, y= 1/x

Question 5

How does y=3/x change the original graph

Answer 5

The y values of y=3/x will he three times greater than y=1/x

Question 6

If there is a change inside f( ) which axis is affected and what happens

Answer 6

x axis

Does opposite to what you expect

Question 7

If there is a change outside f( ) which axis is affected and what happens

Answer 7

y axis

Does what we expect

Question 8

Reflection

-f(x)

Answer 8

Outside the brackets so changes y
So y takes are x-1
So y values change sign, they reflect in the x axis