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3 years ago

Which relation is a function?

Mathematics

2 answers:

Savatey [412]3 years ago

7 0

Answer:

Bottom left graph.

Step-by-step explanation:

The one shaped like a V as it is the only one to pass the vertical line test.

(For it to be a function any vertical line drawn only passes through the graph once.)

Alex Ar [27]3 years ago

6 0

Answer:

The third option (the one that looks like a V but isn't sideways.

To find a function use the vertical line test. To do that you see if a vertical line passes through one or multiple points. If it passes through more than one point anywhere then it isn't a function.

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3 years ago

Given that 9 x − 4 y = 20 Find y when x = − 2 Give your answer as an improper fraction in its simplest form.

Zigmanuir [339]

Answer:

y = $-9 \frac{1}{2}$

Step-by-step explanation:

9x-4y = 20

Given that x = -2

Putting in the above equation

9(-2) -4y = 20

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Dividing both sides by -4

y = $-\frac{38}{4}$

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4 years ago

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3 years ago

Find the missing terms in geometric sequence. 3,12,__,192,__

Mumz [18]

Answer:

48, 768

Step-by-step explanation:

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3 years ago

A.) 5 B.) 6 C.) 7 D.) 8

Amiraneli [1.4K]

Answer:

C. 7

Step-by-step explanation:

First you have to find the unit rate of this equation

The unit rate is 20 students for every 1 teacher because 40 divided by 2 is 20

so if you do 140 divided by 20 your answer is 7

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3 years ago