Question 70
The diagram shows the curve C C\,C with equation y=4+3x−x2y = 4 + 3x - x^2y=4+3x−x2 and the line l l\,l with equation y=x+1y = x + 1y=x+1.
a.[2]
On the diagram, shade and label the region R R\,R that is satisfied by the inequalities 0⩽y⩽4+3x−x20 \leqslant y \leqslant 4 + 3x - x^20⩽y⩽4+3x−x2 and y⩾x+1y \geqslant x + 1y⩾x+1
b.[3]
Find the coordinates of the two points where C C\,C and l l\,l intersect.
1.2 Algebra Questions
303 exam-style questions on OCR (MEI) A Level Maths 1.2 Algebra, covering 1.2.1 Algebraic vocabulary and notation, 1.2.2 Solve linear equations, 1.2.3 Change the subject of a formula, 1.2.4 Solve quadratic equations, 1.2.5 Discriminant of a quadratic, 1.2.6 Linear simultaneous equations, 1.2.7 One linear one quadratic simultaneous equations, 1.2.8 Points of intersection and solutions, 1.2.9 Linear inequalities, 1.2.10 Quadratic inequalities, 1.2.11 Expressing solutions of inequalities, 1.2.12 Use and manipulate surds, 1.2.13 Rationalise the denominator, 1.2.14 Laws of indices, 1.2.15 Negative, fractional and zero indices, 1.2.16 Proportional relationships, 1.2.17 Partial fractions (A-level only), and 1.2.18 Simplify rational expressions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.