Which of the following equations will produce the graph shown below

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction