Question 748638
The data points shown came from an experiment that involved tungsten (W) and iridium (Ir).  Write the equation that expresses tungsten as a function of iridium:  W = mIr + b

Tungsten in grams (vertical):  20 40 60 80 100
Iridium in grams (horizontal): 2 4 6 8 10
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W = 10Ir