Desmos Graphing Calculator

Coordinate Geometry Examples

Colleen Young

Desmos Graphing Calculator

Use the examples here to help you answer questions on lines and circles

Desmos Graphing Calculator

Note that many slides have hyperlinks which will take you direct to a Desmos page you can experiment with.

The images link to a Desmos page.

Find the equation of a line parallelto 5y+4x=3 which passes throughthe point (2,-1)

Describe fully the curve whoseEquation is x2+y2=4

A=(-1,-3) B=(5.7)Calculate the equation of theperpendicular bisector of AB

Show that the line y=3x-10 is a tangent to the circle x2+y2=10

https://www.desmos.com/calculator/kwu4kpamap

https://www.desmos.com/calculator/z9oh3mf7a4

Find the equation of the line shown.(through point shown and perpendicular to SR)

A circle has diameter AB where A=(1.3) and B=(7,-1).Find the equation of the circle.The line y+5x=8 cuts the circle at A and again at D. Find the coordinates of D.

Find the equation of the line through A (3,1) which is perpendicular to AB