Reflections, stretches and compressions

Question 1

What is a vertical reflection, what is the axis of reflection?

Answer 1

it is when the y-value has been reflected

- the x axis

Question 2

What is a horizontal reflection, what is the axis of reflection

Answer 2

when the x value has been reflected

-along the y axis

Question 3

When we are doing vertical and horizontal reflections, what are we multiplying them by?

Answer 3

They are multiplied by negative 1

Question 4

how do we know if it is a vertical compression

Answer 4

When the a value is greater than zero, but smaller than 1

Question 5

How do we know if it is a vertical compression

Answer 5

the a value has to be greater than 1

Question 6

Horizontal compression

Answer 6

when k value is greater than 1

Question 7

Horizontal stretch

Answer 7

when k value is greater than 0, however less than 1

Question 8

When dealing with stretches, and compressions of the k value, how do we represent it?

Answer 8

Bafo1/k

Question 9

What is the general transformed equation

Answer 9

y=af(k(x-d)+c

Question 10

why is it so important to factor out the k value?

Answer 10

it is important to factor because if you don’t the horizontal shift will be wrong