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Camille is attending a fundraiser. She pays for her admission and buys raffle tickets for $5 each. If she buys 10 raffle tickets, then she would spend a total of $135 at the fundraiser.

The number S of dollars Camille spends at the fundraiser is a function of r, the number of raffle tickets she buys.

User Iska
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2 Answers

3 votes

Answer:

write in y slope intercept form

Explanation:

The price of each raffle ticket is constant, so we're dealing with a linear relationship.

We could write the desired formula in slope-intercept form: S= bS=mr+bS, equals, . In this form, m gives us the slope of the graph of the function and gives us the y-intercept. Our goal is to find the values of bbstart and substitute them into this formula.

We know that the amount of money Camille spends increases b $5 for each raffle ticket she buys, so the slope m, and our function looks like bS=5r+bS, equals,

We also know that if Camille buys 10 raffle tickets, then she would spend a total of $ 135 at the fundraiser, which means that when r=10r equals, 10, S=135S=135S, equals, 135. We can substitute this into the formula of the function to find

5⋅10+b

50+b

b

=135

=135

=85

This means admission to the fundraiser costs $85 equals,b=85 equals, 85, end , the desired formula is: S=5r+85

User Lukasz Ochmanski
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0 votes
To spend a total of $135, Camille would have bought 27 tickets at $5 each.
User David Ferrand
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7.4k points