Practice Y-intercept (2.5) - Quadratic Functions - IB 10 Mathematics

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the y-intercept of the function f(x) = x² + 3x + 2?
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Set x to 0 and solve for f(0).
Question 2.
Calculate the y-intercept of f(x) = -4x² + 5.
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Remember f(0) = c.
3Question 3.
What does the y-intercept represent in a quadratic function?
- The highest point of the parabola
- The point where the graph crosses the y-axis
- The slope of the graph
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Think of the intercept as a crossing point.
4Question 4.
True or False: To find the y-intercept of a quadratic function, you set x to 1.
- True
- False
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Remember, the y-axis is where x equals zero.
Question 5.
Consider the function f(x) = 4x² - 7x + 1. Describe the significance of the y-intercept in the context of its graph.
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Evaluate f(0).
Question 6.
A projectile follows the path modeled by the function h(t) = -16t² + 64t + 2. Identify the height at time t=0 and explain its real-world meaning.
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Use the function to find h(0).

5 more questions in this section. Enroll free to practise them all.