Practice Key Concepts (2) - Quadratic Functions - IB 10 Mathematics

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9 questions

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6 sample questions

Question 1.
What is the standard form of a quadratic function?
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Remember the structure of the polynomial.
Question 2.
What does the vertex represent in a parabola?
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Think of the highest or lowest point on the graph.
3Question 3.
What is the standard form of a quadratic function?
- f(x) = mx + b
- f(x) = ax² + bx + c
- f(x) = ax³ + bx² + cx + d
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Look for the equation characterized by x squared.
4Question 4.
The vertex of a parabolic function can be found using which formula?
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It's derived from the coefficients of the quadratic function.
Question 5.
Given the quadratic f(x) = 2x² - 4x - 6, find the vertex and sketch the graph.
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Use x = -b/(2a) for the vertex.
Question 6.
A company models profit with the function P(x) = -5x² + 100x - 400. Determine the number of products x that maximizes profit.
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Find the vertex to locate maximum profit.

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