INVERSE VARIATION:
Answer the following.
1) If y varies inversely as x and y=2 when x=4, find y when x=24.
EQUATION: y = k/x
- 2=k/4
- k=2×4
- k=8
- y = 8/24
- y=2/6 = 1/3
Answer: y = 1/3
2) If y is inversely proportional as x and y= -4 when x=20, find y when x = - 10.
EQUATION: y = k/x
- -4=k/20
- k=(-4)(20)
- k=-80
- y = -80/-10
- y=8
Answer: y=8
3) If y varies inversely as x and y = 64 when x= 3, find y when x= - 4.
EQUATION: y = k/x
- 64=k/3
- k=(64)(3)
- k=192
- y = 192/-4
- y=-48
Answer: -48
#CarryOnLearning
