Which of the following is a one-to-one function?

A. y=[x]

B. f (x) = {5x-1: x (or equal to) - 2

C. y = IxI

D. f (x) = {4:x<0 5:0< (or equal to) x2

I think it's a but i'm really not positive

Giving Brainliest! Suppose the number of students who prefer watching movies is 115. What would be the relative frequency? Round the answer to two decimal places if needed. A. 1.15 B. 0.35 C. 0.12 D. 0.18

Describe what the graph of the sounds at a rock concert look like.

For all values of x, which expression is equivalent to 2 (5 + 8 + 6x) ? A) 2 (6x + 13) B) 6x + 26 C) 10 + 14x D) 12x + 13

Ms. Miller wants to give each of her students 1/4 of a pound of modeling clay. She has 26 students. How many pounds of modeling clay does she need? A) 6 1 2 B) 8 3 4 C) 13 D) 26 what the answer

Which expression is equivalent to one over five M - 20? one over five (m - 4) one over five (m - 100) 5 (m - 4) 5 (m - 100)

O earn a profit of $25, what percent does the store need to markup the item

The area of egypt is 386,700 square miles. the area of wyoming is about 97,818 square milesegypt is about how many times as large as wyoming? explain how you solved the problem

A population of 130,000 grows 4 % per year for 14 years. How much will the population be after 14 years?

What is N = - 8 (25) + 200

Rachel plays a game by rolling two number cubes with sides numbered 1 through 6. To win the game, the sum of the numbers facing up must be 11. What is the probability that Rachel will win the game? A=2/6 B=2/12 C=2/36 D=4/36