Answer :
slope-intercept form is y = mx + b
the question is asking what the cost is to Bob. So, y = cost to Bob
Each arrangement has only one vase making it a constant. b = vase
At the moment y = mx + b in terms of this problem is...
the cost to Bob = number of flowers(cost of one flower) + cost of a vase
When plugging in and solving the equation looks like
y = 15(2) + 4
where y = 34
the question is asking what the cost is to Bob. So, y = cost to Bob
Each arrangement has only one vase making it a constant. b = vase
At the moment y = mx + b in terms of this problem is...
the cost to Bob = number of flowers(cost of one flower) + cost of a vase
When plugging in and solving the equation looks like
y = 15(2) + 4
where y = 34