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**1.**Determine the equation that represents the relationship between the power and the current when the electric potential difference is 24v and the resistance is 1.5 Ω. 2. Draw a graph of the parabola that corresponds to the equation found in (a). 3. Determine the current needed in order for the device to use maximum power.

**2.**P = IV - I^2 R. P = IV

**3.**P = 16 x 24 - 256 x 1.5 = 384 - 384 = 0

P (I) = 256I + 16I - 1.5

Ive been stuck on the questions for a month now and not even really sure how to turn a physics equation into a quadratic function. Any help is appreciated.

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