# Enlargement using negative scale factor

Enlargements using a positive and negative scale factor Finding the centre of enlargement.

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For each of the following, find the centre of enlargement, scale factor and label the image.The scale factor for an enlargement tells how much an object has been enlarged by.

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### Geogebra Transformations Worksheet 2 Enlargement

Scale Factor 2 If the scale factor is between 0 and 1, the image is a reduction (a shrink).With a negative scale factor the number part of it tells us if the shape is to be made bigger or smaller, while the negative sign tells us that the image and object are on opposite sides of the centre of enlargement.View, download and print Edexcel Gcse Mathematics (linear) - Enlargement: Negative Scale Factor pdf template or form online. 90 Gcse Maths Worksheet Templates are collected for any of your needs.A scale factor which to creates an image larger than the original is called an enlargement.

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Make markings on both triangles to indicate all corresponding sides and angles.An enlargement using a negative scale factor is similar to an enlargement using a positive scale factor, but this time the image is on the other side of the center of enlargement, and it is upside down.Challenge your students to predict and Scribble down where they think the image will appear following an enlargement of scale factor 2 with centre at the circled point.

The first number is called the ratio of magnification or dilation factor or scale factor or similitude ratio.

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### High School Geometry Common Core G.SRT.1 - Dilation

Watch the image invert as it travels through the center of enlargement into negative enlargement, and follow the.When the dilation is an enlargement, the scale factor is greater than 1.The line PQ is the image of the line BA. (a) Write down the scale factor of the enlargement.As learning progresses they are challenged to find the centre of enlargement and negative scale factor.A negative scale factor means the object and the image are on opposite sides of the centre of enlargement.What happens to an enlarged image when the scale factor of enlargement is greater than one.Enlargement-how to enlarge a shape by negative scale factor up vote 1 down vote favorite The diagram shows a shaded shape.After a phase of instruction, requested by students using the regulatory cards, the students moved on to creating their own diagrams illustrating negative scale factors.