Question

help please

Answer 1

An appliance company uses the function f(h) = 40h + 120 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(h) = $200.

Answer 2

The function represents a mathematical expression that models the outcome. Right ?

So the parameter that models this function is called 'h' for hours.

The function models the Appliance company's repair bill .
Since the relationship for the output and the input are equivalent , then we can apply algebra to determine the solution .

if
F(h) = 200
F(h) = 40*h +120

then
200 Dollars is billed for the repair for 'h' hours of service
200 = 40*h +120
Both statements above are equivalent

Answer 3

soo, it will be 200= 40 x 200 + 120 ?

Answer 4

solving for h,
Subtract
200 = 40*h +120
-120 -120

80 = 40*h

divide
h= 80/40

h= 2

Answer 5

ohh that was easy i over thought it, but thank you. if i need more help i'll tag you !:)

Answer 6

200 represents the amount of money for 'h' hours of service

h represents the number of hours serviced

the two are distinct ! However the Service bill DEPENDS on hours

To be correct in the mathematical language Bill of service or f(h) is the dependent variable
and h is the Independent variable

Answer 7

the reason I wrote all this junk down is so that it furthers your understand of a function , how the relationship of the input determines output and identifying what the variable represent ! please try applying this next time