SOLUTION: Use the given information to analyze what happened with the fundraiser. When the fundraiser began, 600 people wanted to purchase the dance troupe�s T-shirts at $12 per T-shirt,

Question 1011765: Use the given information to analyze what happened with the fundraiser.
When the fundraiser began, 600 people wanted to purchase the dance troupe�s T-shirts at $12 per T-shirt, but as the group increased the price of their T-shirts, they noticed a fall in the demand. For every $1 increase in price, the demand fell by 50 shirts. The dance troupe�s initial supply was short by 210 T-shirts which corresponded to an initial price of $9.75. For every $1 increase in price, they ordered 40 more T-shirts. Write a system of linear equations to represent both the demand and supply for the T-shirts. Let q represent the quantity of T-shirts and p represent the price.

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Demand:
When , .
When , .
So then the slope is,

Using the point-slope form of a line,

.
.
.
Supply:
When ,
When ,
So then the slope is,

And similarly,

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