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Levart [38]
3 years ago
15

Which of the following expressions represents a function? {(1, 2), (4, −2), (8, 3), (9, −3)}

Mathematics
1 answer:
brilliants [131]3 years ago
4 0
Yes this expression does indeed represent a function.
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How would you graph 4x-7y=28 ?
andrezito [222]

Answer:

y = 4/7x - 4

Step-by-step explanation:

You first have to put it in y = mx + b form

So, we first subtract 4x from both sides: -7y = -4x + 28

Divide both sides by -7

y = 4/7x - 4

Now to graph you have to start at the starting point which is -4

So we start with our point on -4 then move up 4 times and 7 times to the left. Mark the points then draw your line!

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3 years ago
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The weekly sales in thousands of items of a product has a seasonal sales record approximated by n=60.31+19.4sin(/24) (pi x t /24
Paladinen [302]
We are given with the equation
n = 60.31 + 19.4 sin (πt/24)
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8 0
3 years ago
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Shkiper50 [21]

Answer:

10.28571428...days

Step-by-step explanation:

1 feet=12 inches

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4 0
4 years ago
The solution x + b > -14 is x > -21. What is the value of x?
Morgarella [4.7K]

Answer:

b=+7

Step-by-step explanation:

Because when you choose -7

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Find the slope of the line passing through each of the following pairs of points: a A(a, b) and B(c, d)
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Answer:

there must be coordinates

Step-by-step explanation:

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