Ocr Maths C3 1.0 / 5 based on 2 ratings ? MathematicsModulusA2/A-levelOCR Created by: DeliaCreated on: 19-09-13 12:12 The Modulus Function It returns the absolute value of x eg |-3|= 3 |5|= 5 On a graph it is obtained by reflecting the negative part of the graph 1 of 3 Key Rules |axb|= |a| x |b| |a/b|= |a| / |b| |x^2|= |x|^2= x^2 2 of 3 Solving Equations Type A |x+1|=4 (modulus= constant) (SEE NOTES!) solve algebraically Type B |X+2|=|2X-5| (modulus= modulus) (SEE NOTES) square both sides Type C |x-1|=2x (modulus= function of ex) (SEE NOTES!) Must be solved Graphically 3 of 3

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