Differentiate y(x)=x^2 + 2x + 1, find the turning point and classify it as minimum or maximum.

dy/dx=2x + 2

Turning point is where dy/dx=0, so when x = -1

When x=-1, y=0.

d^2y/dx^2=2 > 0 therefore minimum.

JF
Answered by John F. Maths tutor

3828 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Derive the following with respect to x1: y=(x1*x2)/(x1+x2).


How to expand squared brackets?


What is the sum of the infinite geometric series 1 + 1/3 + 1/9 +1/27 ...?


Express 2/P(P-2) in Partial Fractions (C4)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences