Which equation shows direct variation? a. y-x=1. b. y/x=10. c. y=4/x. d. xy=5

step-by-step explanation:

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98%

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)