Question 1197995
4. The resistance (R) of a copper wire varies directly as its length (L). Write this relation as a formula using k as the constant of variation.

A. k/L=R
B. K/R=L
C. LRk=0
D. R/L=k
E. RL=k
F. Rk=L

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Hint:  If it's 2x the length, the resistance is 2x as much.