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Lesson 1 Quiz: Rate of Change and Differentiation Rules

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1.
If y = (2x + 1) * (3x - 4), then dy/dx evaluated at x = 1 equals:
12
1
7
-5
2.
Using the Quotient Rule, the derivative of y = (x + 3) / (x - 2) for x != 2 is:
-5 / (x - 2)2
1 / (x - 2)2
5 / (x - 2)2
(2x + 1) / (x - 2)2
3.
If f(x) = |x - 3|, the derivative f'(3) at x = 3:
Equals 0
Equals 1
Equals -1
Does not exist because the left-hand derivative (-1) does not equal the right-hand derivative (+1)
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