1) Write the equation given y varies directly as x a) y=k/x b) y=kx c) y=x d) k=yx 2) Write the equation given y varies inversely as x a) y=k/x b) y=kx c) y=x d) k=yx 3) Write the equation given y varies jointly as x and z a) y=k/xz b) y=kxz c) k=y/xz d) x=y/kz 4) Given y varies directly as x, find k if y=8 and x=4 a) 1/2 b) 12 c) 2 d) 32 5) Given y varies directly as x, find x if y=8 and x=4 a) 1/2 b) 2 c) 12 d) 32 6) Given y varies directly as x, find y if k=8 and x=4 a) 1/2 b) 2 c) 12 d) 32 7) Given y varies inversely as x, find k if y=14 and x= 2 a) 28 b) 16 c) 7 d) 1/7 8) Given y varies inversely as x, find y if k=14 and x= 2 a) 28 b) 1/7 c) 16 d) 7 9) Given y varies inversely as x, find x if k=14 and y= 2 a) 28 b) 7 c) 16 d) 1/7 10) Given y varies jointly as x and z, find k if x=2, z=10 and y=200 a) 20 b) 10 c) 4000 d) 1

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