Verified Answer :

texaschic101
  1. positive linear
    7. both calculated the slope as 2/3
    8. slope = (145 - 190) / (1 - 0) = -45....rate of change(slope) = -45 per month
    10. (0,60)(1,90)...slope = (90 - 60) / (1 - 0) = 30
         y = mx + b
         slope(m) = 30
         (0,60)...x = 0 and y = 60
          60 = 30(0) + b
          60 = b
          equation is : y = 30x + 60...fixed amount is 60



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