Edexcel Mathematics Sample paper · Paper 2 · Question 11 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

Sample paper · Paper 2 · Question 11 · 6 marks

11. y y = f ( x ) O x Figure 2 Figure 2 shows a sketch of part of the graph y = f ( x ), where f ( x ) = 2|3 − x| + 5, x  0 (a) State the range of f (1) (b) Solve the equation f ( x ) = 1 2 x + 30 (3) Given that the equation f ( x ) = k, where k is a constant, has two distinct roots, (c) state the set of possible values for k. (2)

Lesson: Laws of Indices