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Brogan needs to draw the graph of $y = -x^2 + 1$ - Edexcel - GCSE Maths - Question 7 - 2017 - Paper 1
Question 7
Brogan needs to draw the graph of $y = -x^2 + 1$. Here is her graph. Write down one thing that is wrong with Brogan's graph.
Worked Solution & Example Answer:Brogan needs to draw the graph of $y = -x^2 + 1$ - Edexcel - GCSE Maths - Question 7 - 2017 - Paper 1
Step 1
Write down one thing that is wrong with Brogan's graph.
Answer
The graph should be a downward-opening parabola, as the coefficient of is negative. In Brogan's graph, the curvature appears as if it opens upward, which is incorrect. Therefore, a correct graph should reflect a minimum point and not a maximum, indicating that it should slope downward on either side.