The equation and graph represent two functions. Use the equation y= 4 and the graph to answer the question. What value for x produces the same output in both the graph and the equation?​

What is the value of x in the diagram below?

Which of the following expressions is equal to 2x^2+8

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