Which of the these statements best describes the effect of replacing the graph of f(x) with the graph of f(x) + 4?
a.) the graph shifts 4 units up.
b.) the graph shifts 4 units down.
c.) the graph shifts 4 units left.
d.) the graph shifts 4 units right.

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Me i need ! find the asymptote and determine the end behavior of the function from the graph. the asymptote of the function is= blank 1 . for very high x-values,y =blank 2 options for blank 1 x=2 x=-2 x=3 x=-3 blank 2 options moves towards negative infinity moves toward the horizontal asymptote moves toward the vertical asymptote moves toward positive infinity