TutorMe homepage

SIGN IN

Start Free Trial

Johnathan B.

Great at computer science and math, has experience teaching computer science

Tutor Satisfaction Guarantee

Computer Science (General)

TutorMe

Question:

what is an object?

Johnathan B.

Answer:

An object is an instance of the class. A more real world example of an object may be a TV for example. The TV object would be just one TV of a single design of multiple designs (classes of TVs) and the one TV in your room would be an instance of that design. The TV would have data such as what channel you're currently on, and methods or actions such as on/off and changing the channel or calling up the guide menu.

Calculus

TutorMe

Question:

take the limit as x approaches 0 of sin(x)/x

Johnathan B.

Answer:

This question requirers L'Hospital's rule which says that the limit of a function in the form of f(x)/g(x) is equal to the derivative of f(x) over the derivative of g(x) or f'(x)/g'(x). in the case that a limit turns out to be indeterminate such as 0/0 or inf/inf this is rather useful. in this case, where sin(0)/0 turns out to be 0/0 we differentiate sin(x) to cos(x) and x to 1 where the new limit is the limit as x approaches 0 of cos(x) which is 1

Algebra

TutorMe

Question:

Solve for x^2+2x-3=0

Johnathan B.

Answer:

This question may be answered with the quadratic formula with 2 for b, 1 for a, and -3 for c, but is much more easily done with factoring by realizing that -1 * 3 = -3 for c and -1 + 3 = 2 for b. Thus, this is simplified to (x-1)(x+3)=0 which we can tell equals zero when one factor is zero, so the answers are x=1 and x=-3

Send a message explaining your

needs and johnathan will reply soon.

needs and johnathan will reply soon.

Contact johnathan

Ready now? Request a lesson.

Start Session

FAQs

What is a lesson?

A lesson is virtual lesson space on our platform where you and a tutor can communicate.
You'll have the option to communicate using video/audio as well as text chat.
You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.

How do I begin a lesson?

If the tutor is currently online, you can click the "Start Session" button above.
If they are offline, you can always send them a message to schedule a lesson.

Who are TutorMe tutors?

Many of our tutors are current college students or recent graduates of top-tier universities
like MIT, Harvard and USC.
TutorMe has thousands of top-quality tutors available to work with you.

Made in California

© 2019 TutorMe.com, Inc.