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anonymous
 one year ago
A picture is enlarged by keeping its width the same and increasing its length. The scatter plot below shows the perimeter of the picture (y) for different lengths (x):
plot the ordered pairs 20, 60 and 30, 80 and 40, 100 and 50, 120 and 60, 140
Which function best represents the data in the scatter plot?
y = 2x − 20
y = 2x + 20
y = x − 20
y = x + 20
anonymous
 one year ago
A picture is enlarged by keeping its width the same and increasing its length. The scatter plot below shows the perimeter of the picture (y) for different lengths (x): plot the ordered pairs 20, 60 and 30, 80 and 40, 100 and 50, 120 and 60, 140 Which function best represents the data in the scatter plot? y = 2x − 20 y = 2x + 20 y = x − 20 y = x + 20

This Question is Closed

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1well first, find the slope, y2  y1/x2  x1

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1so ill give you this 120  60/50  20

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1subtract that by yourself and tell me what you get

anonymous
 one year ago
Best ResponseYou've already chosen the best response.060/30 thats what I got

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1ok, simplified it is 2/1. so, we now have the slope of our equation y = 2x + b. but we still need to find b (or where the y intersects.)

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1now, using our slope, we must change it to 1/2 because we are going backwords. So, do 60 divided by 0.5

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1I mean MULTIPLY 60 by .5

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1sorry, if you divided that would be wrong, multiply them

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1ok, so it is y = 2x + 30

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but my answers are y = 2x − 20 y = 2x + 20 y = x − 20 y = x + 20

ccswims
 one year ago
Best ResponseYou've already chosen the best response.1ok, go with y = 2x + 20. it cant be 20 because it is a positive y intersect, not a negative, and we know it is a slope of 2.
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