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NotSoSmart  Aug 27, 2018
 #1
avatar+1720 
+3

Honestly we can already cancel out 3 of these answer choices because they just don't make since (A,B,D) C is the only one that makes total sense. 

63 miles per hour

63*4= 252

63*6=378

63*8= 504

63*19=630 

Hope this makes sense!

RainbowPanda  Aug 27, 2018
 #2
avatar+1720 
+2

Correct me if i'm wrong CPhill and if you'd like to explain it a bit better then I did, that would be great smiley

RainbowPanda  Aug 27, 2018
 #3
avatar+88775 
+3

You are correct, RP....63  mph  is the answer  !!!

 

Here's another way to figure it

Assuming that  the data  points are linear...let  ( x , y)  = ( 4 , 252)  and  (6 , 378)

 

The slope between these will be the rate of change

 

[ 378  -252  ] / [ 6  - 4  ]   =  126  / 2   = 63 miles  /  1  hr   

 

Just as RP  found....!!!!

 

 

cool cool cool

CPhill  Aug 27, 2018
edited by CPhill  Aug 27, 2018

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