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Volgvan
3 years ago
10

PLEASE HELP ME !!!!​

Mathematics
1 answer:
Natalka [10]3 years ago
3 0

Answer:

B

Step-by-step explanation:

There are no repeating values for x, for different values plugged in for y.

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dybincka [34]

Answer:

-3,2   -2,4  1,-1

Step-by-step explanation:

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3 years ago
Which of the relations given by the following sets of ordered pairs is a function?
KonstantinChe [14]

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Answer:

  (a)  {(5, 2), (-4, 2), (3, 6), (0, 4), (-1, 2)}

Step-by-step explanation:

The only relation with no repeated x-values is the first one. The first relation is a function.

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stellarik [79]

Answer:

Therefore (x,y)=(3,7)

Step-by-step explanation:

put the second equation into the first

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1 year ago
David is driving on the highway. He begins the trip with 14 gallons of gas in his car. The car uses up one gallon of gas every 2
ehidna [41]

Answer:

G = -D/20 + 14

Graph in the image attached.

Step-by-step explanation:

Using the model of a linear equation, we have:

G = aD + b

'b' is the y-intercept of the equation, that is, the inicial value of G, when D = 0.

So if David starts the trip with 14 gallons of gas, we have b = 14.

'a' is the slope of the line, that is, an increase of 1 in the value of D causes an increase of 'a' in the value of G.

So if the car uses one gallon every 20 miles, the value of a is -1/20 (an increase of 20 in D causes a decrease of 1 in G).]

So our equation is:

G = -D/20 + 14

The graph of this equation is in the image attached.

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3 years ago
Help with number27 and show work!
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