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4 years ago

Find the range of f(x) =2x-6 for the domain (-2,1,5,8)

Mathematics

2 answers:

Effectus [21]4 years ago

3 0

Answer: range: (-10,-4,4,10)

Step-by-step explanation: range is y value and domain is x value

f(x) will be ur y

in place of x put the value of domain

example:

f(x) =2x-6

y=2(-2)-6

= -10

2) y=2[1]-6

= -4

like that do the rest of the working to find ur range.

Simora [160]4 years ago

3 0

Answer:

the range is : (-10,-4,4,10)

Step-by-step explanation:

calculate :

f(-2) = 2(-2) -6 = -10

f(1) = 2(1) -6 = -4

f(5) = 2(5) -6 = 4

f(8) = 2(8) -6 = 10

the range is : (-10,-4,4,10)

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3 years ago

Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 79.

xxMikexx [17]

Answer:

Price of the adult's ticket = $13

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Step-by-step explanation:

Given:

Cost of train fares for Three adults and four children = $79

Cost of train fares Two adults and three children = $ 56

To Find:

Price of the adult's ticket and the price of a child's ticket =?

Solution:

Let the cost of one adult's ticket be x and

Let the cost of one child's ticket be y

Then

Three adults and four children must pay $ 79 be

3x + 4y = 79-----------------------------------------------(1)

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2x + 3y = 56----------------------------------------------(2)

multiply eq(1) by 2, we get

6x + 8y = 158----------------------(3)

multiply eq(2) by 3, we get

6x + 9y = 168----------------------(4)

Subracting (3) from (4)

6x + 9y = 168

6x + 8y = 158

(-) (-) (-)

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0x + y = 10

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y=10

Now substitute the value of y in eq (1) to get the value of x

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Answer:

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5% of p is the same as 0.05p.

Now we subtract 0.05p from p.

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