Anyways, translating any figure up or down is equivalent to adding the number of units you'll be increasing or decreasing to the entire statement. For instance, if you have h(x)=x^2 and you are going to translate this function to go down by 4 units to become the function k(x), you will decrease h(x) entirely by 4. In other words, k(x)= (h(x))+(-4). This is simplified to be k(x)= x^2-4, as the h(x) is now translated down by 4 units, where you can do this by subtracting 4 from h(x) as a whole. I hope this example helped you so far.
