Midline — Algebra II, what it means and where it is taught
The horizontal line halfway between the peaks and troughs.
Taught in Algebra II.
Where it is taught
Practise this idea
4 questions in the course bank use Midline, in Graphs of Sine & Cosine.
Problem 1
Give the midline of y=sin x+4.
Worked answer
y=4
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Problem 2
A wave peaks at 17 and bottoms at 3. Find its midline.
Worked answer
y=10
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Problem 3
Find the maximum of y=4sin x+6.
Worked answer
10
6+4=10
Problem 4
Find the minimum of y=4sin x+6.
Worked answer
2
6-4=2