Chapter 4.2, Problem 41PPS

To determine

To find: The best equation of line from

  $\begin{array}{l}A\mathrm{...}y=-\frac{1}{3}x+72\\ B\mathrm{...}y=2x+225\\ C\mathrm{...}y=8x+4\end{array}$

That represents best the situation that

The freshman class has $225. They sell raffle tickets of $2 each to raise money for a field trip.

Answer to Problem 41PPS

The equation $y=2x+225$ best represents the given situation.

Where

x = number of tickets sold

y = total amount with the freshman class for field trip after money raising

Explanation of Solution

Given information: The freshman class has $225. They sell raffle tickets of $2 each to raise money for a field trip.

Calculation:

We need to form and equation for the given situation.

Let x represent the number of tickets sold and

y represent the total amount with the freshman class for field trip after money raising.

Since , cost of each ticket is $2.

We have , cost of x tickets = 2x

Since, the freshman class already had $225 with them.

We have , total amount with the freshman class after money raising = $2x+225$

So, the best suited equation for the total amount with the freshman class for field trip (y) is given by :

  $y=2x+225$