Plz answer correctly no trolls I will give brainlist

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2