Determine whether the equation defines y as a function of x. y = x2

A. function
B. not a function


Answer: A

Mathematics

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Verify the identity.(1 - cos x)(1 + cos x) = sin2x

What will be an ideal response?

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Solve the problem.A breed of cattle needs at least 10 protein and 8 fat units per day. Feed type I provides 6 protein and 2 fat units at $4 per bag. Feed type II provides 2 protein and 3 fat units at $3 per bag. What mixture of Feed type I and Feed type II will fill the dietary needs at minimum cost?

A. 0 bags of Feed type I, 5 bags of Feed type II B. 1 bag of Feed type I, 1 bag of Feed type II C. 1 bag of Feed type I, 2 bags of Feed type II D. 4 bags of Feed type I, 0 bags of Feed type II

Mathematics

Solve the problem.Suppose that f(x) = 4x + 5. What is f(4)? What point is on the graph of f?

A. 261; (4, 256) B. 261; (4, 261) C. 256; (4, 256) D. 256; (5, 256)

Mathematics

Differentiate the following function implicitly to find dy / dx.

Mathematics