For the function defined by I = 120/d^2, What is the constant of proportionality?
1 answer:
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Answer:
Step-by-step explanation:
Well, I really don’t like graphic approaches in math, so hear ya go a formula:
Although there are easier ways that work for some quadratics, but this formula works for them all. (It is atached, have a look)
So,
( -(-2)+- square root of ((-2)^2-4(1)(-40)) ) / 2(1)
Note that for a hear I use one, since there is nothing in front of x.
( 2 + (12.8) ) / 2 < with plus
( 2 -(12.8) ) / 2 < with minus
X = 7.4
Or
X = -5.4
(Quad equations have 2 answers)
Answer:
B
Step-by-step explanation:
the equation representing direct variation is
y = kx ← k is the constant of variation
The equation representing inverse variation is
y = ← k is the constant of variation
Given
3y = x ( divide both sides by 3 )
y = x ← equation representing direct variation
with k =