Practice Y-intercept (2.5) - Quadratic Functions - IB 10 Mathematics – Group 5, Algebra
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Y-Intercept

Practice - Y-Intercept

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the y-intercept of the function f(x) = x² + 3x + 2?

💡 Hint: Set x to 0 and solve for f(0).

Question 2 Easy

Calculate the y-intercept of f(x) = -4x² + 5.

💡 Hint: Remember f(0) = c.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

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

💡 Hint: Think of the intercept as a crossing point.

Question 2

True or False: To find the y-intercept of a quadratic function, you set x to 1.

True
False

💡 Hint: Remember, the y-axis is where x equals zero.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider the function f(x) = 4x² - 7x + 1. Describe the significance of the y-intercept in the context of its graph.

💡 Hint: Evaluate f(0).

Challenge 2 Hard

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.

💡 Hint: Use the function to find h(0).

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