## How do you know if its a maximum or minimum?

Vertical parabolas give an important piece of information: **When** the parabola opens up, the vertex is the lowest point on the graph — called the **minimum**, or **min**. **When** the parabola opens down, the vertex is the highest point on the graph — called the **maximum**, or **max**.

## How do you determine if a vertex is a maximum or minimum without a graph?

## How do you find the maximum and minimum of a vertex?

**Without graphing** the function, c you **determine whether** the **vertex** is a **minimum** or **maximum**? Yes, you can! You just need to **check** the “a” value of the function. **If** a>0, then the parabola opens upward (smiley), and the y-value of the **vertex** is the **minimum** value of the function.

## How do you find the vertex?

## What is the vertex from?

To **find the vertex** of a parabola, you first need to **find** x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you’ll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola’s **vertex**.

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## How do you know if its a maximum or minimum?

Vertical parabolas give an important piece of information: **When** the parabola opens up, the vertex is the lowest point on the graph — called the **minimum**, or **min**. **When** the parabola opens down, the vertex is the highest point on the graph — called the **maximum**, or **max**.

## How do you determine if a vertex is a maximum or minimum without a graph?

## How do you find the maximum and minimum of a vertex?

**Without graphing** the function, c you **determine whether** the **vertex** is a **minimum** or **maximum**? Yes, you can! You just need to **check** the “a” value of the function. **If** a>0, then the parabola opens upward (smiley), and the y-value of the **vertex** is the **minimum** value of the function.

## How do you find the vertex?

## What is the vertex from?

To **find the vertex** of a parabola, you first need to **find** x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you’ll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola’s **vertex**.

## How do you know if its a maximum or minimum?

Vertical parabolas give an important piece of information: **When** the parabola opens up, the vertex is the lowest point on the graph — called the **minimum**, or **min**. **When** the parabola opens down, the vertex is the highest point on the graph — called the **maximum**, or **max**.

## How do you determine if a vertex is a maximum or minimum without a graph?

## How do you find the maximum and minimum of a vertex?

**Without graphing** the function, c you **determine whether** the **vertex** is a **minimum** or **maximum**? Yes, you can! You just need to **check** the “a” value of the function. **If** a>0, then the parabola opens upward (smiley), and the y-value of the **vertex** is the **minimum** value of the function.

## How do you find the vertex?

## What is the vertex from?

To **find the vertex** of a parabola, you first need to **find** x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you’ll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola’s **vertex**.

## How do you know if its a maximum or minimum?

**When** the parabola opens up, the vertex is the lowest point on the graph — called the **minimum**, or **min**. **When** the parabola opens down, the vertex is the highest point on the graph — called the **maximum**, or **max**.

## How do you determine if a vertex is a maximum or minimum without a graph?

## How do you find the maximum and minimum of a vertex?

**Without graphing** the function, c you **determine whether** the **vertex** is a **minimum** or **maximum**? Yes, you can! You just need to **check** the “a” value of the function. **If** a>0, then the parabola opens upward (smiley), and the y-value of the **vertex** is the **minimum** value of the function.

## How do you find the vertex?

## What is the vertex from?

**find the vertex** of a parabola, you first need to **find** x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you’ll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola’s **vertex**.