Question

Describe how the graph of each function can be obtained from the graph of f.
(a) y=-2f(x)
(b) y=-1/2f(x)

Answer 1

(a) the function is reflected in y axis, and stretched (double slope or sharper form)
(b) the function is reflected in y axis, and wider (half slope and elonged form)
The minus sign indicates the reflection.

Answer 2

thank you!

Answer 3

You're welcome.