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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.
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 .
F(h) = 200
F(h) = 40*h +120
200 Dollars is billed for the repair for 'h' hours of service
200 = 40*h +120
Both statements above are equivalent
ohh that was easy i over thought it, but thank you. if i need more help i'll tag you !:)
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
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