The cost, in dollars, of retaining the services of a computer repairman in anchorville is given by c = 48x + 18, where x is the number of hours worked.
a.
48 signifies the hourly rate, and 18 signifies the overhead charge.
c.
18 signifies the hourly rate, and 48 signifies the overhead charge.
b.
-48 signifies the hourly rate, and 18 signifies the travel cost.
d.
66 signifies the cost for an on-site inspection.

Answer with explanation:

Cost, in dollars,(C)→  C = 4 8 x + 18, where x is the number of hours worked.

This is Linear equation in two variable, where C is the total amount Charged for number of Hours(x), worked.

If you will look at the Equation of line in slope intercept form in two variables,

y = m x + c, where, m=48, c=18

⇒4 8 x = Hourly Rate, for, x=1,2,3,

⇒18 = Overhead Charge

You can inspect this by , putting , x=1 , 2 ,3, in the equation of Cost Equation.

For, Example, C(1)=48 ×1 +18

C(2)=48 × 2 + 18

C(3)= 48×3+18

So, every time , number 18 is added to the term 48 x, for different values of x.

Option A:→ 48 signifies the hourly rate, and 18 signifies the overhead charge.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.