Figure abcd is a parallelogram. if point c lies on the line x = −1, what is the y-value of point c? coordinate plane with points a 1,4, b 1, 2, and d -1,2, segments ab and ad are drawn, there is also a dashed line from point d on the line x equals negative 1 −2 −1 0 1

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