What is the slope of the tangent line to the curve y = x^2 + 2x at the point (1,

Practice Questions

Q1
What is the slope of the tangent line to the curve y = x^2 + 2x at the point (1, 3)?
  1. 1
  2. 2
  3. 3
  4. 4

Questions & Step-by-Step Solutions

What is the slope of the tangent line to the curve y = x^2 + 2x at the point (1, 3)?
  • Step 1: Identify the function given in the question, which is y = x^2 + 2x.
  • Step 2: Find the derivative of the function. The derivative tells us the slope of the tangent line. For y = x^2 + 2x, the derivative is y' = 2x + 2.
  • Step 3: Determine the x-coordinate of the point where we want to find the slope. In this case, the point is (1, 3), so x = 1.
  • Step 4: Substitute x = 1 into the derivative to find the slope at that point. Calculate y' = 2(1) + 2.
  • Step 5: Simplify the calculation: 2(1) + 2 = 2 + 2 = 4.
  • Step 6: Conclude that the slope of the tangent line to the curve at the point (1, 3) is 4.
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