Chapter 13

Question 1

What does the transformation y = f(x) + a mean?

Answer 1

Move the graph a units up.

Question 2

What does the transformation y = f(x) - a mean?

Answer 2

Move the graph a units down.

Question 3

What does the transformation y = f(x-a) mean?

Answer 3

Move the graph a units to the right.

Question 4

What does the transformation y = f(x+a) mean?

Answer 4

Move the graph a units to the left.

Question 5

What does the transformation y = -f(x) mean?

Answer 5

Reflect the graph in the x-axis.

Question 6

What does the transformation y = f(-x) mean?

Answer 6

Reflect the graph in the y-axis

Question 7

What does the transformation y = f(ax) mean?

Answer 7

Multiply the x values of the coordinates by the scale factor 1/a .

Question 8

What does the transformation y = af(x) mean?

Answer 8

Multiply the y values of the coordinates by the scale factor a .