Question: i need 100% perfect ans What is the inverse function of k(x) = 1+ 2x 7+ x O a. K-' (x)= 7x - 1 2-X

i need 100% perfect ans

What is the inverse function of k(x) = 1+ 2x 7+ x O a. K-' (x)= 7x - 1 2-X O b. k' (x) = 2- X 1 - 7x O C. K-'(x) = 1+ 2y 7+y O d. K -' (x ) = y+7 1 +2x Is f : R - R defined by f(x) = 2x - 3 a bijective function? O a. it is not an injective function and not a surjective O b. it is not an injective function but it is a surjective O c. it is an injective function but not surjective O d. it is a bijective function

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