On which interval is the function decreasing
1 answer:
Answer: Choice B) pi/4 < x < 3pi/4
Graph the function using a graphing calculator. I used desmos which is a free online tool. The graph is shown below as the red curve. The blue region represents the region in which the red curve is going downhill as you read from left to right on the interval from x = pi/4 to x = 3pi/4.
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Answer:
D
Step-by-step explanation:
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Factor out 2 on the numerator and 2x on the denominator.
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Cancel the factor (x + 2) on the numerator/ denominator
= ← cancel the 2 on numerator/ denominator
= : x ≠ 0