Identify the domain and range of each relation. Is the relation a function? Explain. SEE EXAMPLES 1 AND 3 13. y 14. City Team Rockets Birds 3 8. 10 Pups Cats Hawks 11 12 14 ABCD
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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PRACTICE
d range
Identify the domain and range of each relation. Is
the relation a function? Explain. SEE EXAMPLES 1 AND 3
13.
y
14.
City
Team
Rockets
Birds
Pups
Cats
Hawks
3
8.
10
11
12
14
4.
Analyze each situation. Identify a reasonable
domain and range for each situation. SEE EXAMPLE 2
2.5 and
15. An airplane travels at 565 mph.
values,
n is a
16. Tickets to a sporting event cost $125 each.
17. An average person consumes 2,000 Calories
each day.
name all
nction.
Determine whether each relation is a function.
If yes, classify the function as one-to-one or not
one-to-one. SEE EXAMPLE 3
18.
19.
21
2.
-4
2
4.
4.
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