"Translating" a graph in the x direction just changes the x value: replace x with x-p or x+ p (it doesn't matter which).

Here, translating the function by "p" gives . Saying that its graph "passes through (7,5)" means that when x= 7, y= 5 so . We can divide both sides by 5 to get so, taking square roots of both sides . If 7- p= 1, then -p= 1-7= -6 so p= 6. If 7- p= -1, then -p= -1-7= -8 so p= 8.