Transformations

Question 0

F(x + a) has what effect?

Answer 0

(-a)

0

Question 1

F(x) + a has what effect on the graph?

Answer 1

Translation of ( 0 ) 
                       ( a )

Question 2

Y= af(x) has what difference to y=f(x) ?

Answer 2

Stretch the graph vertically by scale factor a.

X value stays the same

Question 3

What happens to the graph y=f(x) when I changes to y=f(ax) ?

Answer 3

The horizontal axis is stretched by scale factor 1/a .

Y values unchanged.

Question 4

Y=f(x) –> y= -f(x) ?

Answer 4

When the - is outside the bracket the graph is reflected in the x axis.

Question 5

Y=f(x) –> y=f(-x)

Answer 5

When the - is in the bracket

The graph is reflected in the Y axis.