Answers>Maths>IB>Article

dy/dx = 10exp(2x) - 4; when x = 0, y = 6. Find the value of y when x = 2.

First, we must evaluate what is given in the question. As it can be seen, the expression indicates that the problem consists of a first-order differential equation. We are also given the values of x and their respective y value. These indicate that the problem should be integrated and then solved to obtain the value for the integration constant. Finally, we must calculate the value of y for when x = 2. Following these steps, the differential equation can be integrated to give y = 1/210exp(2x) - 4x + C. We are given that y = 6 when x = 0, thus the value of C is calculated as C = 6 - 5exp(0) = 1. Thus the general expression of y is y = 5exp(2x) - 4x + 1. Substituting in the value of x = 2 gives y(2) = 5exp(22) - 42 + 1 = 5exp(4) - 7.

Answered by Girts L. Maths tutor

2067 Views

See similar Maths IB tutors

Related Maths IB answers

All answers ▸

What is the equation of the tangent drawn to the curve y = x^3 - 2x + 1 at x = 2?


All tickets for a concert are the same price. Amy and Dan pay £63 for some tickets. Amy pays £24.50 for 7 tickets. How many tickets does Dan buy?


Integration by Parts


Given the function f(x)=λx^3 + 9, for λ other than zero, find the inflection point of the graph in terms of λ. How does the slope of the line tangent to the inflection point changes as λ varies from 0 to 1?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences