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Day 4 - Clip 1
In an earlier discussion Ms Coombs had the
students find the equation of the line that
connected the left points of each step of the
rate of change step function. She also had them
find the equation of the line connecting the
right end points of each step of the step
function. In an effort to find the “accurate”
line, the students then found the line
in-between the two functions. In this clip Ms.
Coombs reviews this process. The function is y =
-(x2) + 6x - 4. The function
connecting the left end of each rate of change
step function is
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