Which statements are true of functions? Check all that apply. All functions have a dependent variable. -All functions have an independent variable.
-The range of a function includes its domain.
-A vertical line is an example of a functional relationship.
-A horizontal line is an example of a functional relationship.
-Each output value of a function can correspond to only one input value.

Someone answer asap for ! 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

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test