SOLUTION: Yesterday, you typed 8 pages in 48 minutes. Today, you typed 20 pages in 2 hours. a. Plot the two points (x,y) where x is the time (in minutes) and y is the number of pages.

Algebra ->  Linear-equations -> SOLUTION: Yesterday, you typed 8 pages in 48 minutes. Today, you typed 20 pages in 2 hours. a. Plot the two points (x,y) where x is the time (in minutes) and y is the number of pages.      Log On


   

Question 1066740: Yesterday, you typed 8 pages in 48 minutes. Today, you typed 20 pages in 2 hours.
a. Plot the two points (x,y) where x is the time (in minutes) and y is the number of pages.
b. What is the rate of typing?
c. Write an equation that represents the number of pages in terms of the number of minutes.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The given points are:
( 48, 8 ) and
( 120. 20 )
I converted 2 hrs to +60%2A2+=+120+ min
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The rate of typing is:
+8%2F48+=+1%2F6+ pages/min
and this agrees with the 2nd point:
+20%2F120+=+1%2F6+ pages/min
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The equation will have the form:
+y+=+m%2Ax+ where +m+ is the slope of the line.
In this case +m+=+1%2F6+, so the equation is
+y+=+%281%2F6%29%2Ax+
From this you can see that when +x+=+6+,
+y+=+1+, and that is 1 page typed in 6 min