Answer:
A:
B:
C:
D:
Solution
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Problem 2
Find , , and if .
Solution
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Problem 3
Han found a way to compute complicated expressions more easily. Since , he looks for pairings of 2s and 5s that he knows equal 10. For example, Use Han's technique to compute the following:
Solution
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Problem 4
The cost of cheese at three stores is a function of the weight of the cheese. The cheese is not prepackaged, so a customer can buy any amount of cheese.
Store A sells the cheese for dollars per pound.
Store B sells the same cheese for dollars per pound and a customer has a coupon for $5 off the total purchase at that store.
Store C is an online store, selling the same cheese at dollar per pound, but with a $10 delivery fee.
This graph shows the price functions for stores A, B, and C.
Coordinate plane, horizontal, weight of cheese in pounds, 0 to 12 by 2, vertical, cost in dollars,
Match Stores A, B, and C with Graphs , , and .
How much does each store charge for the cheese per pound?
How many pounds of cheese does the coupon for Store B pay for?
Which store has the lowest price for a half a pound of cheese?
If a customer wants to buy 5 pounds of cheese for a party, which store has the lowest price?
How many pounds would a customer need to order to make Store C a good option?
Explanation: