What is the y-intercept of the function f(x) = –x + ?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account