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What is the vertex of the quadratic equation y = x^2 - 4x + 3?

Practice Questions

Q1
What is the vertex of the quadratic equation y = x^2 - 4x + 3?
  1. (2, -1)
  2. (2, 1)
  3. (1, 2)
  4. (3, 0)

Questions & Step-by-Step Solutions

What is the vertex of the quadratic equation y = x^2 - 4x + 3?
  • Step 1: Identify the coefficients a, b, and c from the equation y = x^2 - 4x + 3. Here, a = 1, b = -4, and c = 3.
  • Step 2: Use the vertex formula x = -b/(2a) to find the x-coordinate of the vertex. Substitute b and a: x = -(-4)/(2*1) = 4/2 = 2.
  • Step 3: Substitute the x value back into the original equation to find the y-coordinate. Calculate y = 2^2 - 4(2) + 3.
  • Step 4: Simplify the equation: y = 4 - 8 + 3 = -1.
  • Step 5: Combine the x and y coordinates to find the vertex. The vertex is (2, -1).
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