Question

You and your friends decide to play video games online together for 5 hours on Saturday. This particular game charges a one-time $10 fee to download and $2.50 per hour to play.

Write the function that can be modeled by this situation.

Answer 1

f(x) = 10 + 2.50x

Explanation:

Let the total hours played be 'x' hours.

To find the charge for playing 'x' hours, multiply x by 2.50.

Charge for an hour = $2.50

Charge for 'x' hours = 2.50*x

= $ 2.50x

To find the total cost, add one time charge with the cost charged for playing ''x'' hours.

Total cost = one-time charge + charge for 'x' hours

f(x) = 10 + 2.50x

x = 5 hours,

f(5) = 10 + 2.50 * 5

= 10 + 12.50

= $ 22.50

They have to pay $ 22.50 for playing 5 hours.