2. Write an equation and sketch the graph for the described linear relation. a) Kenji started with $50 in his bank account, then deposited $10 per week. Let x = # of weeks and y = account balance. per b) A tree is 10 inches tall when it is planted. It grows at a constant rate of 1.5 inches month. Let x = # of months from when the tree was planted and y = the height of the tree. c) A snowball weighed 60 pounds when it started to melt. It melted at a constant rate of 4 pounds per Let x = # of hours the snow had been melting and y = weight of the snowball. hour.