DJ A service charges a $200 setup fee and $75 an hour after that. DJ B service chargers no setup fee but costs $125 an hour

Question

Set up equations for both of the services using x and y. determine the variable and provide an explanation for why you chose what you did,

 

Solve the system using the graphing method. graph the solution on the same coordinate plan. intercept the coordinates of the solution in practical terms

 

Solve the system using the substitution method

solve using the addition method.

Answer 1

^{The setup fee always stands alone and the rate fee has to multiplied by the number of hours. So your equations are:}

y=75x + 200

y=125x

 

These equations can be set equal to each other to find the intercept (substitution method). 

 

These can be graphed using the plotting method or using the slope m (coefficient of X) and the y-intercept (b) method y=mx+b