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Given: y varies directly with x and has a constant rate of change of 7. When the value of y is 12, then the value of x would be _____.
a. equal to zero
b. less than 2
c. equal to 7
d. greater than 12

Respuesta :

IGotChillsTheyreX
Your answer should be B, less than 2

With the rate of change known, the equation is most likely:

Y = 7X

So if we were to plug in 12 for Y...

12 = 7X

Divide both by 7

1.714 = X

Which is slightly less than 2.

I hope this helps!
JeanaShupp

Answer: b. less than 2

Step-by-step explanation:

When two variables x and y are directly proportional, then

The equation that shows direct variation is given by :-

[tex]y=kx[/tex], where k is the proportionality constant.

Given: The constant rate of change k= 7

The value of y = 12

Substitution the values of k and y in the above equation, we get

[tex]12=7x\\\\\Rightarrow\ x=\dfrac{7}{12}<2[/tex]

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