Answer: it makes a horizontal shift. for example: (x-4) means the graph moved 4 units to the RIGHT.
Step-by-step explanation: it is essentially the opposite of what you think if it's inside the parenthesis.
Mean=5
Step-by-step explanation:
add the numbers given and divide it by the number of numbers given
13 + 21 = 13- -21
The minus sign and negative cancel each other out.