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Functions and Graphs
Quick questions on Quadratic graphs explained: N(A)-Level Mathematics Functions and Graphs
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the shape of a quadratic graph?Show answer
A quadratic function always graphs to a smooth U-shaped curve called a parabola. The sign of (the coefficient of ) decides which way it opens:
What is plotting the curve?Show answer
To draw a parabola, build a table of values across a sensible range of , then join the points with a smooth curve (not straight segments):
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