Math B6C Chapter 12 Quiz Graphs

Problem 1 & 2:     z = ln(x² + y²)

Problem 3:     xz² – y²cos(z) = –1

Problem 4:     z = e^2x+y

Problems 5 & 6:     xy² – yz + x²z = 1

Problem 7:     x² – y² + z² = 4

Problem 8:     xyz = 6

Problem 14:     x² + y² + xz = 1

Problem 15:     x³ – 2xy² + z² = 1

Problem 20:     z = x³ + y³ + 3x² – 3y² – 8

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