8 worksheets designed to improve understanding of this tricky topic for GCSE and A-level students. The graphs are quadratic graphs and approximate solutions are to be found by reading off values or finding points of intersection with appropriate straight lines. For the last pair of worksheets students have to determine which straight line to draw. The worksheets are effectively four pairs of sheets with each pair covering a particular idea.
Some of the questions ask students to verify the answers by solving the equations using factorisation or the quadratic equation formula.
The answers are all provided.
GCSE 9-1 DfE reference A18, A19 find approximate solutions using a graph. Solve quadratic equations
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