For the equation -4y=8x, what is the constant of variation?
A -4
B -2
C 1
D 2*
Can some one check my work?
8/-4 = ?
Okay thanks
To determine the constant of variation in the equation -4y = 8x, we need to isolate y on one side of the equation. Let's rearrange the equation:
-4y = 8x
Dividing both sides of the equation by -4, we have:
y = -2x
Comparing this equation to the general form of a direct variation equation, y = kx, we can see that the constant of variation (k) is -2.
Therefore, the correct answer is B, -2.