Mathematics for IGCSE & O level - Sketching Curves (Section 3 - No. 34)
Which of the following can be used to sketch the graph of \(y = x^2 + 4x + 3\)?
Finding the x-intercepts
Completing the square
Identifying the slope
Finding the y-intercept
Explanation
X-intercepts and y-intercepts, and completing the square are all useful.
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