Tutor profile: Tedi K.
Subject: Music Theory
What scale degrees make a viiº7 chord?
7, 2, 4, b6 For example, in C Major, these scale degrees would correspond to B, D, F, Ab
Find the minima or maxima for the following equation. f(x) = x^2 - 8x + 13
f'(x) = 2x - 8 2x = 8 x = 4 if x < 4, f'(x) is negative, so f(x) is decreasing if x > 4, f'(x) is positive, so f(x) is increasing Thus, f(x) has a minimum at x = 4.
Use factoring to solve for x. x^2 - 2x - 48 = 0
(x+6)(x-8) = 0 x = -6, 8
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