Which of the following equations defines a function? a. x= |y| b. y=[ [x] ] c. x^2+y^2=49 d. x= 1/8y^2 im almost certain it isnt a or b.. but im not sure if its c or d. tia

The table respent two linear functions the equation respented by the first tables is given

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

What is the graph of the function fx x+2/x-3?