What is the method and answer to solve this?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next