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Firdavs [7]
3 years ago
7

Do the points (-3,9), (1,1), (5,25), (6,36) make a function?

Mathematics
1 answer:
Serga [27]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

The answer is yes because none of the x-coordinates repeat. If one or more of the x-coordinates repeat, it is no longer considered a function.

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3 years ago
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dybincka [34]

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Step-by-step explanation:

3 0
3 years ago
[3]<br>(b)<br>Calculate the values of c for which 2x2 – 3x + c&gt;-2 for all values of x.​
hoa [83]

Answer:

  c > -7/8

Step-by-step explanation:

Add 2 for an inequality that compares to zero:

  2x^2 -3x +(c+2) > 0

This will be true when the discriminant is negative. For the quadratic ...

  ax^2 +bx +c

the discriminant is ...

  b^ -4ac

We want this to be negative:

  (-3)^2 -4(2)(c+2) < 0

  9 -8(c +2) < 0

  9 -8c -16 < 0

  -7 < 8c

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The given inequality will be true for all values of c greater than -7/8.

3 0
3 years ago
Which of the following graphs represents a proportional relationship?
Lina20 [59]
The graph of a proportional relationship is a straightline that passes through the origin (0,0).

The only graph with that feature is the option c., so that is the answer.

The other graphs ar linear relationships because the are straighlines that to not pass through the origin.

Answer: the option c.
8 0
3 years ago
This algebra btw , please help
lana [24]

Answer:

Where is the picture, we need the picture.

Step-by-step explanation:

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