Which is a real-life example of a quadratic function?
A. The growth of a bacteria population.
B. The path of a baseball after being hit.
C. The temperature change throughout the day.
D. The amount of money in a bank account over time

The correct real-life example of a quadratic function is:

**B. The path of a baseball after being hit.**

A quadratic function often represents the motion of objects under the influence of gravity, where the path follows a parabolic trajectory. This applies to the baseball, which follows a parabolic path as it rises and then falls back down.

The other options are not quadratic:
- **A** describes exponential growth.
- **C** typically shows a sinusoidal or linear pattern.
- **D** (money in a bank) often grows according to an exponential function, depending on interest rates.

Would you like more details on how quadratic functions model real-life situations?

Here are some related questions:
1. What is the general form of a quadratic function?
2. How can you identify a quadratic function from a graph?
3. What are other real-life examples of quadratic functions?
4. How does the shape of a quadratic function change with different coefficients?
5. How do you find the vertex of a parabola?

**Tip:** In a quadratic function, the highest exponent of the variable is always 2.

Discover how quadratic functions model the real-life path of a baseball after being hit. This problem explores key algebraic concepts such as quadratic equations and parabolas, showing how gravity affects projectile motion. Perfect for students in Grades 8-10.

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