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The graph of y = f(x) where f(x) = ax^2 + bx + c is shown in Figure 1. - AQA - A-Level Maths Pure - Question 4 - 2022 - Paper 1
Question 4
The graph of y = f(x) where f(x) = ax^2 + bx + c is shown in Figure 1.
Worked Solution & Example Answer:The graph of y = f(x) where f(x) = ax^2 + bx + c is shown in Figure 1. - AQA - A-Level Maths Pure - Question 4 - 2022 - Paper 1
Step 1
Tick the correct box.
Answer
From Figure 1, we observe that the graph represents a quadratic function that opens downwards. The vertex is the highest point of the graph, indicating that the value of 'a' in the standard form of a quadratic function (f(x) = ax^2 + bx + c) is negative. Therefore, the correct box to tick is the one indicating a negative 'a'.