# How to know when to reflect about the x-axis

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Last updated: June 11, 2021 | Author: Clarence Gildersleeve

## How do you know if a graph is mirrored about the x-axis?

How to: Given a function, reflect the graph both vertically and horizontally.

• Multiply all outputs by -1 for a vertical Consideration. The new graph is a Consideration of the original graph about the xaxis.
• Multiply all inputs by 1 for a horizontal reflection.
• ## What is the rule for a reflection about the x-axis?

That Rule for a reflection over x axis is (x,y)→(x,−y) .

## How to tell if a function is mirrored about the y-axis?

Consideration on the jaxis: j = f ( − x ) j = f(-x) j=f(−x) In addition to translations, another type of transformation of function is called Consideration. if a Consideration it’s about them jaxisthen the dots on the right side of the jaxis gets to the right side of the jaxisand vice versa.

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## What does reflection at x =- 2 mean?

If you reflect one point above the line y = xthe x-coordinate and the y-coordinate swap places. or. Think every other line. Notice that each point of the original figure and its image is the same distance from the line from Consideration (x = 2 in this example).

## What happens when you think about YX?

When you reflect one point above the j-Axis that j-Coordinate remains the same, but the x-Coordinate transformed into its opposite (its sign is changed). the j-axis is the point (-x,j). Consider it the j = x: When you reflect one point above the line j = xthe x– coordinate and j– Coordinate relocation.

## How do you reflect on X?

The rule to think about Above the X axis is to negate the value of the y-coordinate of each point, but leave the x-value same. For example, if point P with coordinates (5,4) is reflected above the X Axis and mapped to point P’, the coordinates of P’ are (5,-4).

## What is the rule for YX?

The line j=xwould appear when graphed on a graphing calculator as a straight line intersecting through the origin with a slope of 1. For example: For triangle ABC with coordinate points A(3,3), B(2,1) and C( 6,2), apply a reflection over the line j=x. Following the notation, we would swap them x-Value and the j-Value.

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## What is the reflection rule?

A transformation using a line acting as a mirror with an original figure (archetype) reflected in the line for creating a new figure (picture) is called a Consideration.

## How do you reflect a shape?

reflecting on a shape means easy to tip it over a mirror Line. Every point in the shape is moved to the other side mirror line, but stays the same distance from the line. That reflected The image is now pointing in the opposite direction to the original object.

## How do you find reflection?

performance reflections

The line of Consideration is usually given in the form y = mx + by = mx + by=mx+by, equals, m, x, plus, b. How to draw the line of Consideration? Every point in the original figure has the same perpendicular distance from the line from Consideration as the corresponding point in the image.

## How do you enlarge a shape?

to enlarge a shape, an expansion center is required. When a shape is magnified from a magnification center, the distances from the center to each point are multiplied by the scaling factor.

## What is the area formula?

perimeter, area and volume

Table 2. area formulas
shape formula variables
square A=s2 s is the side length of the square.
rectangle A=LW L and W are the side lengths of the rectangle (length and width).
triangle A=12BH b and h are base and height

## What is perimeter and area?

About transcript. Scope is the distance around the outside of a shape. area measures the space within a shape.

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## What is the perimeter formula?

That formula for the Scope of a rectangle is often written as P = 2l + 2w, where l is the length of the rectangle and w is the width of the rectangle. The area of ​​a two-dimensional figure describes the area covered by the shape.

## How do you find the perimeter with the area?

The relationship between area and Scope of a square it is Scope is 4 times the square root of area. to receive the Scope of the area for a square, multiply the square root of area times 4 Scope is always measured in linear units derived from the areas square units.

## What is a scope in math?

Scope is the distance around the edge of a shape.

## How do you find the perimeter given the area?

Scope a rectangle

• Remember the formula for Scope and area a rectangle. That area of a rectangle, a = length * width, while the Scope is p = (2 * length) + (2 * width)
• Replace the known values ​​with the area Formula. 36 = 4 * m.
• Substitute longitude and latitude values ​​into the Scope Formula.
• ## How do you find perimeter using area and width?

That Scope P of a rectangle is given by the formula P=2l+2w, where l is the length and w is the Broad of the rectangle. That area A of a rectangle is given by the formula A=lw, where l is the length and w is the Broad.