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Y_Kistochka [10]
3 years ago
15

A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

Mathematics
2 answers:
Gala2k [10]3 years ago
6 0

Answer:

<em>y=7x</em>

Step-by-step explanation:

I just took the test and got this one right. You should too if it's on Ingenuity Common core math A

lara [203]3 years ago
3 0

Answer:

y=7x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

k=y/x                      

For (2,14) ----> k=14/2=7

For (4,28) ----> k=28/4=7

so                              

the value of k=7            

therefore                                          

The equation  is                                                    

y=7x                

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