Question 13 - A-Level Maths

Exam Board	OCR MEI
Module	AS Paper 2 (AS Paper 2)
Year	2024
Session	June
Topic	Differentiation Applications
Type	Increasing/decreasing intervals

13 Determine the range of values of \(x\) for which \(y = 4 x ^ { 3 } + 7 x ^ { 2 } - 6 x + 8\) is a decreasing function.