Question

1. find the c.o.p. of this table:

days	kwh
2	58
3	87
4	116

Explanation:

Step1: Recall C.O.P. formula

C.O.P. (Constant of Proportionality) for a proportional relationship \( y = kx \) is \( k=\frac{y}{x} \), where \( x \) is Days, \( y \) is kWh.

Step2: Calculate using first pair

Take \( x = 1 \), \( y = 29 \). Then \( k=\frac{29}{1}=29 \).

Step3: Verify with second pair

\( x = 2 \), \( y = 58 \). \( k=\frac{58}{2}=29 \). Same for others.

Answer:

29