Question

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Answer 1

`\huge \bf༆ Answer ༄`

The Slope of the line is the rate of change shown in the graph.

Taking two points on the line (1 , 6) and (2 , 12)

Slope (m) is equal to : -

• 
  `\sf (y_2 - y_1)/(x_2 - x_1)`

• 
  `\sf (12 - 6)/(2 - 1)`

• 
  `\sf (6)/(1)`

• 
  `\sf6`

Hence, Rate of change is $6 / hour

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