Simultaneous Systems of Equations Solved Graphically Solving
simultaneous equations (systems of equations) by drawing graphs,
and seeing where the two graphs meet (intersect). The
coordinates of the point of intersection represent the solution
of the equations. Notice that sometimes there are no solutions
(the lines never meet because they are parallel), and sometimes
there are inifinite solutions (the two lines are the same).
Author and programmer: Ron Barrow UK Years 10-11, KS4, Higher
GCSE Mathematics, Grades B - A* - Algebra and Graphs US - Grade
10 Geometry How to Use this Applet In this applet we are trying
to investigate what we can learn about the coordinates of the
point where two straight lines cross on a graph (if they do
cross!). We can vary Line 1 by changing values A, B and C.
Similarly we can move Line 2 by varying D, E and F. Try it. As
you vary the lines, notice what happens to the crossing point.
Is there always a crossing point? Also, try to use algebra to
check that you get the correct val