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sergij07 [2.7K]
3 years ago
8

X=y2 is this equation a function?​

Mathematics
2 answers:
Bezzdna [24]3 years ago
5 0
No it isn’t because a function gives a y for every x
lorasvet [3.4K]3 years ago
4 0

Answer:

No it isn't.

Step-by-step explanation:

A function gives just one  

y

for every  

x

.

In this case there will always be two  

y

's for every  

x

, because the reverse will be  

y

=

+

√

x

or

y

=

−

√

x

Example:  

x

=

4

→

y

=

−

2

or

y

=

+

2    

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tiny-mole [99]

http://goblues.org/faculty/grantm/files/2015/12/Practice-Test-3.7-Solutions.pdf

I think it's question number three. Sorry if the link dosen't work.

4 0
3 years ago
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den301095 [7]
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3 0
3 years ago
Solve the given system of equations2y=x+93x-6y=-15
attashe74 [19]

Answer:

No solutions

Explanation:

The given system of equations is

2y = x + 9

3x - 6y = -15

To solve the system, we first need to solve the first equation for x, so

2y = x + 9

2y - 9 = x + 9 - 9

2y - 9 = x

Then, replace x = 2y - 9 on the second equation

3x - 6y = -15

3(2y - 9) - 6y = -15

3(2y) + 3(-9) - 6y = -15

6y - 27 - 6y = -15

-27 = -15

Since -27 is not equal to -15, we get that this system of equation doesn't have solutions.

5 0
8 months ago
PLEASE HELP
pickupchik [31]
I believe it is B. y = 2x + 2
6 0
3 years ago
A store in Ashland purchased a cat calendar at a cost of $1.30 and marked it up 100%. Later on, Fernando bought the cat calendar
Arada [10]

Answer:

$2.99

Step-by-step explanation:

Given that:

Purchase price of cat calendar = $1.30

Markup = 100%

Hence, price at which the cat calendar was sold :

1.30 + 100%(1.35)

$1.30 + $1.30 = $2.60

Sales tax = 15%

Amount paid as sales. tax _

15% * 2.60 = $0.39

Total amount paid :

$2.60 + 0.39 = $2.99

7 0
3 years ago
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