Help your students prepare for their Maths GCSE with this free Solving simultaneous equations graphically worksheet of 30+ questions and answers
Simultaneous equations are pairs of equations with two unknowns. We can solve simultaneous equations to find a set of solutions (one value for each unknown) which work for both equations . For a pair of linear simultaneous equations, there will be one set of solutions. For a pair of equations where one is a linear function and one is a quadratic function, there could be 1 or 2 sets of solutions.
We can solve pairs of simultaneous equations using a graphical method. To do this, we accurately plot the graphs for both equations. Remember, one way to accurately plot any graph is to create a table of values using the equation for the graph. Once we have plotted the graph for the first equation and the second equation, the coordinates of the point/points of intersection of the graphs will be the solution/solutions to the simultaneous equations.
There is no need to match coefficients when solving simultaneous equations graphically (this would be used to solve simultaneous equations by elimination).
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