Answer:
Yes
Step-by-step explanation:
f(x) = x³ − 9x² + 11x + 21
f(3) = (3)³ − 9(3)² + 11(3) + 21
f(3) = 27 − 81 + 33 + 21
f(3) = 0
Answer:

Step-by-step explanation:

This was probably not answered on time
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Since the argument of the sine function is x without any scaling factor, the period is 2π, the 1st selection.
Answer:
y = 6x - 47
or
6x - y - 47 = 0
Step-by-step explanation:
