Verbal 2. How do we determine the domain of a function defined by an equation?

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

5 0

Step-by-step explanation:

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<u>The domain of a function can be determined by listing the input values of a set of ordered pairs. See (Figure). The domain of a function can also be determined by identifying the input values of a function written as an equation.</u>

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two times a number added to another number 25. Three times the first number minus the other number ids 20. Find the numbers

fomenos

Let x be the first number and y be the second.

2x + y = 25
3x - y =20

1) Add them together.

5x = 45
x = 9

2) Solve for y.

2(9) + y = 25
y=7

3) Check your work on the other equation.

3(9) - (7) = 20
27 - 7 =20
20 = 20

6 0

3 years ago

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STALIN [3.7K]

Answer:

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Step-by-step explanation:

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