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OpenStudy (anonymous):
The graph shows the amount of time that Dewayne spent on a practice exam based on the number of questions he completed. What is the function rule? How much time will he spend if the actual exam has 20 questions?
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OpenStudy (anonymous):
I little hard to see
OpenStudy (anonymous):
100 minutes
OpenStudy (anonymous):
take those points, find the slope. so between (2,10) and (4,20) slope is 5. then put the slope in that (y-y1)=m(x-x1) formula and get the general rule y=5x (I think...)
OpenStudy (anonymous):
and yea, it ends up being 100 mins ;)
OpenStudy (anonymous):
y = x/2 or y = 5x
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OpenStudy (anonymous):
y = 5x
OpenStudy (anonymous):
y = 5x probably
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