The cost of a student ticket to the school play is $7. Write an equation that correctly relates the
total cost, c, for a particular number, s, of student tickets purchased. Identify the independent
and dependent variables.
t = 7s
s is independent. The total cost depends on the number of students attending.
thank you
but how
To write an equation that relates the total cost, c, to the number of student tickets purchased, s, we can multiply the cost per ticket by the number of tickets purchased.
The cost per ticket is given as $7, so the equation would be:
c = 7s
In this equation, c represents the total cost, and s represents the number of student tickets purchased.
The independent variable in this case is s, the number of student tickets purchased. It is called independent because it can vary freely, and the total cost depends on it. The dependent variable is c, the total cost. It depends on the number of tickets purchased, so it is called dependent.