A data set contains an independent and a dependent variable. Which must be true of the data set if a linear function can be used to represent the data?

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.