If you work 42 hours per week, then your weekly pay $P$ , in dollars, is proportional to your hourly wage $W$ , in dollars per hour. Express this proportionality relationship as a formula.
A) $P \propto W$
B) $P = 42 W$
C) $W = 42 P$
D) None of the above.

Question

If you work 42 hours per week, then your weekly pay $P$ , in dollars, is proportional to your hourly wage $W$ , in dollars per hour. Express this proportionality relationship as a formula. 
A) $P \propto W$
B) $P = 42 W$
C) $W = 42 P$
D) None of the above.

Quizplus · Accepted Answer

The formula for a proportionality relationship is y = kx, where y and x are the variables and k is the constant of proportionality. In this case, P is the dependent variable and W is the independent variable, so the formula is P = kW. Since it is given that the workweek is 42 hours, this means that k = 42, so the formula becomes P = 42W.

If You Work 42 Hours Per Week, Then Your Weekly PPP

If You Work 42 Hours Per Week, Then Your Weekly $P$