Function equations the equation y=3x−5 represents a function. true false a function can only be represented by a straight line on the coordinate plane. true false what are the ordered pairs for y = 4x + 2 using x={−2,  1, 2} what is the value of the function at x=3? (see attachment) what is the value of the function y=2x−3 when x=−1? {(3, , , , 8)} is a function or is not a function {(2, , , , 4)} is a function or is not a function {(2, , , , 6)} is a function or is not a function {(3, , , , 4)} is a function or is not a function will and brainliest anyone who gives correct answers!

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?