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Elanso [62]
3 years ago
14

1) For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.​

Mathematics
1 answer:
Gelneren [198K]3 years ago
8 0

Answer:

Yes, "y" varies directly with "x".

The equation is:  y=1.375x

Step-by-step explanation:

 By definition, Direct variation equations have the following form:

y=kx

Where "k" is the Constant of variation.

If you solve for "k", the equation is:

k=\frac{y}{x}

Then, given the table provided in the exercise, you can know if "y" varies directly with "x" by finding the quotient of the correspoding values of "x" and "y":

- Dividing  y=11 by x=8 you get:

\frac{11}{8}=1.375

- Divide y=22 by x=16:

\frac{22}{16}=1.375

- Dividing  y=33 by x=24:

\frac{33}{24}=1.375

Since the quotient is constant, then "y" varies directly with "x" and the the Constant of variation is:

k=1.375

Therefore, the equation  for the Direct variation is:

y=1.375x

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