TutorMe homepage

SIGN IN

Start Free Trial

Danielle W.

Tutor for 5+ years

Tutor Satisfaction Guarantee

Pre-Calculus

TutorMe

Question:

How do you find the domain on a rational polynomial?

Danielle W.

Answer:

When finding the domain of rational polynomial (or any function) you want to find when the function doesn't exist, so in the case of a rational polynomial you want to find when the denominator is equal to 0, because we know 1/0 is an undefined number.

Calculus

TutorMe

Question:

What does the sign of the first derivative mean for f(x)?

Danielle W.

Answer:

The sign of the first derivative tells whether f(x) is increasing, decreasing, or constant. If after you take the derivative of f(x) and the leading coefficient of f'(x) is positive, then it is increasing, if the leading coefficient is negative then f(x) is decreasing, and if f'(x) is a constant than f(x) is constant.

Algebra

TutorMe

Question:

What real numbers are equal to their cubes?

Danielle W.

Answer:

Let the number be x. So, then set x=x^3 expanding x^3=x(x^2-1)=0 then we have x(x-1)(x+1)=0 Therefore our real numbers that are equal to their cubes are 0,1,-1

Send a message explaining your

needs and Danielle will reply soon.

needs and Danielle will reply soon.

Contact Danielle

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.