Can somebody me? i’ve been stuck on the same question for 15min.

In what form is the following linear equation written y=9x+2

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done