Rational Functions: Another Vary Exciting True or False

1. If y varies directly with x, then if x decreases, y does what?->Remains constant
2. If a varies inversely with b, then if b decreases, a does what?->Becomes zero
3. If f varies directly with g, what happens to f when g doubles?->Doubles
4. If y varies directly with x, and y = 10 when x = 2, find k.->5
5. If y varies inversely with x, and y = 20 when x = 4, find k.->5
6. Given a = 3bc, what's the value of a when b = 5 and c = 10?->50
7. Which equation represents inverse variation?->f = 10g
8. Given  with c = 100 when d = 25, find k.->2500
9. Given z = kxy with z = 900 when x = 30 and y = 3, find k.->10
10. The equation f = 2gh is what type of variation?->Joint

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