Question

Students will be going to a Christmas fair at school. Entrance fee is $2.00 per person. You will have an option to purchase 0 to 4 items at $3.00 for each item bought.

Hint for Students: You will have to put this in y-intercept form :
y=mx+b

Answer 1

`y=3x+2\\\\where\ y\ is\ total\ expenditure\ and\ x\ is\ number\ of\ items.\ x\ can\ be\ any\ integer\ and\ 0\leq x\leq 4.`

Explanation:

Let number of items
`=x`

Let total expenditure
`=y`

`cost\ of\ 1\ item=\$ 3.00\\\\Cost\ of\ x\ items=cost\ of\ 1\ item* x=3.00x\\\\Entrance\ fee=\$ 2.00\\\\Total\ expenditure=Cost\ of\ items+Entrance\ fee\\\\y=3.00x+2.00\\\\y=3x+2`