Which expression is equivalent to (f + g)(4)? Of(4) + g(4)
Of(x) + g(4)
Of(4 + g(4))
4(f(x) + g(x))

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).