The gradient of a line can be calculated using the formula

where

and

are two points that the line passes through
Answer:
√2
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Answer:
Step-by-step explanation:
total metre = 10m
If one piece is 4m then 2m more then that = 4 + 2 = 6m
So total = 4 + 6 = 10m
The graph is just a straight line (parallel to the x-axis) with y- coordinate is 18