- How do you simplify absolute value?
- How do you graph absolute value on a calculator?
- How do you determine if its a function?
- Can a circle be a function?
- Why does the graph of the absolute value function have the V shape?
- Why do we need absolute value?
- What is the absolute value of 8?
- How do you graph an absolute value function?
- What is an absolute value in algebra?
- How do you reflect absolute value?
- How do you tell if a graph is a function?
- What is not a function?
- What is the absolute value of an equation?

## How do you simplify absolute value?

Once you have performed any operations inside the absolute value bars, you can simplify the absolute value.

Whatever number you have as your argument, whether positive or negative, represents a distance from 0, so your answer is that number, and it is positive.

In the example above, the simplified absolute value is 3..

## How do you graph absolute value on a calculator?

Example 1: Solve:Enter left side in Y1. You can find abs( ) quickly under the CATALOG (above 0) ( or MATH → NUM, #1 abs( )Enter right side in Y2.Use the Intersect Option (2nd CALC #5) to find where the graphs intersect. Move the spider near the point of intersection, press ENTER. … Answer: x = 4; x = -4.

## How do you determine if its a function?

Determining whether a relation is a function on a graph is relatively easy by using the vertical line test. If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. However, if a vertical line crosses the relation more than once, the relation is not a function.

## Can a circle be a function?

So the question is whether there’s a function whose graph is the circle. A circle is a set of points in the plane. A function is a mapping from one set to another, so they’re completely different kinds of things, and a circle cannot be a function.

## Why does the graph of the absolute value function have the V shape?

Because the absolute value of a number is that number’s distance from zero, all of the function values of an absolute value function will be non-negative. … As you can see in the graph below, the absolute value function forms a “V” shape.

## Why do we need absolute value?

When you see an absolute value in a problem or equation, it means that whatever is inside the absolute value is always positive. Absolute values are often used in problems involving distance and are sometimes used with inequalities. … That’s the important thing to keep in mind it’s just like distance away from zero.

## What is the absolute value of 8?

1 Answer. The absolute value of 8 is 8 .

## How do you graph an absolute value function?

To graph the absolute value, you need to know where the vertex is, so the numbers will be going down, then turn and start going back up, or going up and then turn and start going down, the middle point will be the vertex and should be the center point of the table.

## What is an absolute value in algebra?

Absolute value refers to the distance of a point from zero or origin on the number line, regardless of the direction. The absolute value of a number is always positive. Absolute value of a number is denoted by two vertical lines enclosing the number or expression. … Consider an expression |x| > 5.

## How do you reflect absolute value?

That is, any point below the x -axis reflects about the x -axis. These actions are summarized by saying that ‘any part of the graph below the x -axis flips up’. In the absolute value transformation, a point (a,b) on the graph of y=f(x) y = f ( x ) moves to a point (a,|b|) on the graph of y=|f(x)| y = | f ( x ) | .

## How do you tell if a graph is a function?

Mentor: Look at one of the graphs you have a question about. Then take a vertical line and place it on the graph. If the graph is a function, then no matter where on the graph you place the vertical line, the graph should only cross the vertical line once.

## What is not a function?

A function is a relation in which each input has only one output. In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.

## What is the absolute value of an equation?

Absolute value equations are equations where the variable is within an absolute value operator, like |x-5|=9. The challenge is that the absolute value of a number depends on the number’s sign: if it’s positive, it’s equal to the number: |9|=9. If the number is negative, then the absolute value is its opposite: |-9|=9.