Which of the following represents inverse variation?

y divided by x equals negative one-half

y equals negative x

y equals one minus x

y equals seven divided by x

Question

Which of the following represents inverse variation?

 y divided by x equals negative one-half

 y equals negative x

 y equals one minus x

 y equals seven divided by x

anonymous · Answer

inverse variation is inversly proportional
so eg doubling x causes y to halve.
which one fits that scenario?

anonymous · Answer

so opposite effect, if you do ___ to one opposite happens to the other

anonymous · Answer

a) y equals three minus x
so equation:
y = 3 - x

so if y = 10, and we double y, what happens to x
y    = 3 - x
10 = 3 - x
x   = -7

so double y
2y    = 2(3 - x)
20   = 6 - 2x
-14   = 2x

so y is directly proportional to x in this
doubling y doubled x

anonymous · Answer

option 2) would make most sense

anonymous · Answer

THANK YOU :) sorry for the caps

anonymous · Answer

your welcome