Somebody can make 7 cupcakes ( the y value) with one cup of flour ( the x value) how many cupcakes can she make with 9 cups of flour

She can make 63 cupcakes with 9 cups of flour.

Explanation:

Given :

Somebody can make 7 cupcakes ( the y value) with one cup of flour

To find: How many  cupcakes  she can make with 9 cups of flour

1 cup of flour (x)  can be used to bake = 7 cupcakes (y)

Thus 9 cups of flour can be used to bake = cupcakes

Thus she can make 63 cupcakes with 9 cups of flour