Absolute Value - ANS-the distance between a number and zero; can never be negative
* |a+b|≠|a|+|b|
The rule of inverse functions - ANS-A function can ONLY have an inverse only if 1→1
(Estrada's theory from a guy can only ask one girl. But one girl can get asked by
multiple guys)
Even functions - ANS-Functions that are symmetric to the y-axis; a function is even if
f(-x) = f(x)
* cos(-∅) = cos∅ is even
Odd functions - ANS-Functions that are symmetric to the origin; a function is odd if f(-x)
= -f(x)
* sin(-∅) = sin∅ is odd
Slope - ANS-y = mx+b
y = (y2-y1)/(x2-y2)
* if M1 = M2 they are parallel
* if M1M2 = -1 they are bisector
Question 1 : Determine whether the function is even, odd, or neither
f(x) = x^5 - ANS-odd
because
f(x) = x^5
f(-x) = -x^5
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