## 1. What is a Quadratic Function?

### 1.1. A quadratic function is where a, b, and c are numbers not equal to zero. The graph of a quadratic function is a curve called a parabola.

## 2. What is the rule of a Quadratic Function?

### 2.1. The graph of a quadratic function is a curve called a parabola.

## 3. Example of a Quadratic Function?

### 3.1. Throwing a ball.

3.1.1. You can use a quadratic function to find the amount of time it takes for the ball to hit the ground.

3.1.2. When you graph this function, it will be a parabola.

### 3.2. Tracking net worth.

3.2.1. You can use a quadratic function to find the amount of money you'll get after production, selling, and paying workers for your item.

3.2.2. The graph will be a parabola. It can show the height of sales, the low of sales, the lowest possible amount of profit you can get , or the most possible amount of profit you can get.

## 4. What is the formula of a Quadratic Function?

### 4.1. f(x) = ax2 + bx + c,

## 5. What is a Piecewise Function?

### 5.1. A piecewise function is a function that is a combination of one or more functions.

## 6. Example of a Piecewise Function.

### 6.1. Movie tickets.

6.1.1. Different prices for different age groups.

### 6.2. Selling Mixed nuts.

6.2.1. Different prices for different amounts of nuts. (usually pounds).