Mathematics for IGCSE & O level - Graphs Of Functions (Section 4 - No. 3)
When sketching the graph of a quadratic function, which of these is useful to find?
The root of the equation.
The y-intercept.
The turning point.
The gradient of the graph.
Explanation
The x-intercepts(roots), y-intercept and the turning point are useful to find when sketching the graph of a quadratic function.
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