Starting with the graph of y=e^x , find the equation of the graph that results from
(a) reflecting about the line y=4
微積分題(10分)
2008-09-23 6:13 am
回答 (1)
2008-09-23 6:57 am
✔ 最佳答案
Step 1: Shift the curve down by 4 units, we get y + 4 = e^x.Step 2: Reflect the curve about the x - axis, we get -y + 4 = e^x.
Step 3: Shift back the curve up by 4 units, we get -(y - 4) + 4 = e^x.
That is -y + 8 = e^x
y = 8 - e^x.
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