Solve dy/dx = 4x with y(0) = 4. What is y(4)?

Answer and explanation

Correct answer: B.

  1. Step 1: Integrate: y = 2x² + C, and y(0) = 4 gives C = 4. Step 2. y(4) = 36. **Answer: . Why not the others:** is what you get if you integrate x as x² instead of x²/2. is what you get if you forget to integrate. is what you get if you get the sign of the constant wrong.

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