Question The function C(x)=17.5x−10 represents the cost (in dollars) of buying x tickets to the orchestra with a $10 coupon.

Question

The function C(x)=17.5x−10�(�)=17.5�−10 represents the cost (in dollars) of buying x� tickets to the orchestra with a $10 coupon.

a. How much does it cost to buy 5 tickets?

It costs $$ to buy 5 tickets.

b. How many tickets can you buy with $130?

You can buy  tickets.

Answer 1

C(x)=17.5x-10

replace x with 5

C(5)=17.5(5)-10

= 87.5-10=77.5

=$77.50 for 5 tickets