3
Step-by-step explanation:
First, find the midline by averaging the highest value (2) and the lowest value (-4). In other words, do (2+-4)/2. You get the midline as -1. Now find the distance from the midline to the top. Distance from -1 to 2 is 3. Amplitude is therefore 3.
If the parent function is translated 5 units up and 9 units to the right, then you should subtract 9 from x and add 5 to the whole function. Thus,
1) translation the parent function ย 9 units to the right gives you the function ย
2) translation the function ย 5 units up gives you the function ย
correct choice is C