Enable contrast version

# Tutor profile: Donald L.

Donald L.
engineering graduate student, lifelong learner, tutor-in-the-making

## Questions

### Subject:Pre-Calculus

TutorMe
Question:

Match the equations (1-4) below to the description of their graph (i-iv). 1) y = x 2) y = x^2 3) y = x^3 4) y = 1/x i) hyperbola ii) parabola iii) straight line iv) cubic

Donald L.

1) Goes with (iii) straight line 2) Goes with (ii) parabola 3) Goes with (iv) cubic 4) Goes with (i) hyperbola

### Subject:Mechanical Engineering

TutorMe
Question:

Typical problems would include a diagram of forces that interplay. Since that is not an option, just a basic question, what do mechanical engineers do?

Donald L.

Mechanical engineers are maybe the most diverse engineers. They do everything from designing and manufacturing small parts to building large energy generating or energy-using systems, such as power facilities, HVAC and refrigeration facilities, and aircrafts.

### Subject:Calculus

TutorMe
Question:

What is the derivative of (4x^2) * (x^3 + 5)?

Donald L.

f(x) = (4x^2)*(x^3 + 5) f'(x) = (8x)(x^3 + 5) + (4x^2)(3x^2 + 5) f'(x) = 8x^4 + 40x + 12x^4 + 20x^2 ANS: f'(x) = 20X^4 + 20x^2 + 40x

## 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 Lesson" 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.
BEST IN CLASS SINCE 2015
TutorMe homepage