Mathematics, 05.12.2019 02:31, ptrlvn01

An iron bar is heated. its length, l, in millimetres can be modelled by a linear function, l= mt + c,

where t is the temperature measured in degrees celsius (°c).

at 150°c the length of the iron bar is 180 mm.

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An iron bar is heated. its length, l, in millimetres can be modelled by a linear function, l= mt + c...