Samm5412
Answered

For the equation -4y = 8x , what is the constant of variation?
      A: -4
   B: -2
   C: 1
   D: 2

Verified Answer :

TSO

-4y = 8x

Divide both sides by -4

y = -2x

This is in the form of y = kx, where k is the constant of variation.
y = kx is the direct 

That means, k = -2. 

The constant of variation is B. -2.

JeanaShupp

Answer: B: -2


Step-by-step explanation:

Given equation: \(-4y=8x\)

To make it in standard form divide both sides by -4, we get

\(y=-2x\)

Now this is in the standard form of y = mx, where m is the constant of variation.

\(\Rightarrow\ m=-2\)

Thus, the constant of variation is -2.

The constant of variation (m) is the number that associates two variables that are directly proportional or inversely proportional to each another.


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