The scatter plot shows the number of pages scanned (y) in different number of hours (x) by a scanning machine:
Which function best represents the data shown in the scatter plot?

y = 100 + 1,000x
y = 100 − 1,000x
y = 500 − 1,000x
y = 500 + 1,000x

Question

The scatter plot shows the number of pages scanned (y) in different number of hours (x) by a scanning machine:
Which function best represents the data shown in the scatter plot?

 y = 100 + 1,000x
 y = 100 − 1,000x
 y = 500 − 1,000x
 y = 500 + 1,000x

anonymous · Answer

http://learn.flvs.net/webdav/assessment_images/educator_algebraI_v20/06_00_54.jpg The graph

anonymous · Answer

Another way to see the graph:

anonymous · Answer

start by finding the y intercept

anonymous · Answer

Could you help me with that! Please!

anonymous · Answer

if you connected the dots, where would the line cross the y-axis?

anonymous · Answer

I am still confused

anonymous · Answer

in other words at time zero how many pages were scanned?

anonymous · Answer

100?

anonymous · Answer

is it?
look at the graph

anonymous · Answer

the answer is d
but to get that you would connect the dots and find where the line you made crosses the y-axis. Plug that into the equation for b. Then calculate the rate of change from one point to the next. Plug that into the equation for m and then switch the equation around to put it into slope intercept form.

anonymous · Answer

Oh, i understand now! Thank you both so much!