Find and interpret the values of r and r² for the given data.

Exercise 7

Data from Exercises 7

In an electrical experiment, the following data were found for the values of current and voltage for a particular element of the circuit. Find the voltage V as a function of the current i. Then predict the voltage if i = 8.00mA. Is this interpolation or extrapolation?

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Current (mA) Voltage (V) 15.0 10.8 9.30 3.55 4.60 3.00 4.10 5.60 8.00 10.50