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Kevin Wang

Math Tutor

Kevin Wang is a Math Tutor based in New York, New York. Kevin has been tutoring math for over 10 years, and specializes in K-12 math topics and standardized tests, such as SAT and ACT. Kevin has an economics background and a career in both finance and marketing analytics. His interest in tutoring goes back even longer than his career. He discovered tutoring at the start of his university career and enjoys it as a way to stay sharp with fundamental skills and remain up to date with trends in our education system. Kevin received a BS in Economics from Duke University.

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Q&A Comments (9)

How can I easily practice calculating Frequency for my exams?
When studying for frequency calculations for your upcoming exams, knowing exactly where you need to study is important. After you have practiced your test questions, you will start to notice a pattern in problems that you consistently get wrong. Whether it be graph interpretation, word problems, or solving for the unknown in reverse, knowing these areas is what's going to make you more accurate and swift. Of course, some review of basic math is necessary, but knowing what kinds of questions you will face can also be very helpful. Consistent practice and post-practice analysis will allow you to build a better study strategy and become more confident when performing the frequency calculations.
I get confused setting up the matrix, do you have any tips regarding this?
To easily find the cross product of two vectors, you will create a special 3x3 matrix. Your matrix's first row is always i, j, and k, which are the x, y, and z axis directions. The second and third rows are the components of the two vectors you're multiplying. Once you've set up the matrix, use the formula to solve the cross product.
How do I find the equation of the line?
To find a line perpendicular to another line, two things must be done: first, flip the slope of the other line upside down and change its sign. For example, if it is 2, the slope of a perpendicular line would be -1/2. Second, pick a point that the new line goes through. Once you have the slope and have a point, you can now use the point formula to find the equation of the perpendicular line.
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Co-authored Articles (21)

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There are lots of number tricks you can do by using math. You can give someone a particular set of instructions and calculations and their current age can be deduced with a bit of mental math.. 27 August 2024. To them it...

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Calculate Frequency

Frequency, also called wave frequency, is a measurement of the total number of vibrations or oscillations made within a certain amount of time. There are a few different ways to calculate frequency based on the informati...

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Calculate the Cross Product of Two Vectors

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Construct a Golden Rectangle

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Find Eigenvalues and Eigenvectors

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Find the Midpoint of a Line Segment

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Construct a Perpendicular Line to a Given Line Through Point on the Line

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Calculate RPM

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Estimate Height

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Have a Movie Night With Friends

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Perform an LU Factorization

To solve systems of three or more linear equations, you'll typically convert the problem into an augmented matrix and row reduce from there. However, this process can be slow and inefficient with more equations. The numb...

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Calculate Contour Integrals

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Figure Cost Per Square Inch of Pizza

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