Joe purchased a tray of 48 petunias to plant in his garden. The graph shows points representing the number of flowers left to plant at several different times while Joe is planting
____x + y =_____
complete the equation, in standard form, that represents the relationship between the number of petunias left to plant, y, and the time, x, Joe has spent planting.

Joe purchased a tray of 48 petunias to plant in his garden The graph shows points representing the number of flowers left to plant at several different times wh class=