How does changing the function from f(x) = −4 cos 3x to g(x) = −4 cos 3x − 6 affect the range of the function?
1 Answer
Changing the function from
Explanation:
The general form of a cos function can be written like so:
a: vertical scale; so if
b: horizontal scale; so if
c: horizontal shift (left/right); so if c is negative, the function will shift to the left. Likewise if c is positive, the function will shift to the right. Beware, since c is in brackets, so let's say
d: vertical shift (up/down); so if d is negative, the function will shift down. Likewise, if d is positive, the function will shift up.