y=px+12qx2\displaystyle y = px + \frac{1}{2}qx^2y=px+21qx2
p=7p = 7p=7 q=2q = 2q=2 x=4x = 4x=4
Work out the value of yyy.
Practise OCR GCSE Maths Substitution with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.