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I need help with this practice I’m struggling to solve it, I have already attempted it but I’m dealing uneasy on my final answer

I need help with this practice I’m struggling to solve it, I have already attempted-example-1
User Derick F
by
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1 Answer

5 votes

Answer:

y = 7 csc ( x /2) - 2

Step-by-step explanation:

The parent csc x function has the range ( - ∞, -1] U [1,∞ ) infinity, meaning its "width" is 2. Now our function has range ( - ∞, -9] U [5,∞ ), with a width of 5 - (-9) = 14, which is two times as much as that of the parent function function. This tells us that the function is vertically stretched by a factor of 14 / 2 = 7, and so we have


y=7\csc x

Now, the parent function csc x has vertical asympototes at x = 0 and x = π. Our function, however, has consecutive asymptotes at x = 0 and x = 2 π. Meaning our functin is streched horizontally by a factor of 2. Therefore, we do x --> x / 2 and so we have


y=7\csc ((x)/(2))

Lastly, we observe that the function is not symmetric about the x-axis, whereas the parent function is. This tells us that some vertical shifting is involved. How much vertical shifting exactly?

We find the answer by finding the midpoint


(-9+5)/2
=-2

which is the vertical shift.

Therefore, the final form of our function is


\boxed{y=7\csc ((x)/(2))-2}

which is our answer!

User Dsaket
by
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