Step-by-step explanation: In order to slide functions to the left or two the right, you need to either add or subtract a number from the inside of the function. (In order to do this, you would put parentheses around the x and whatever it is you are adding/subtracting by). In this case you would be subtracting 4, so you would put parentheses around it. Also, remember that since you are subtracting from the inside, it is always the opposite then what it would be on the outside. So, rather than it sliding to the left 4, it slides to the right 4.
