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Question 2 of 6

A truck rental company charges $50 plus $10 per hour. Identify a function that represents the total
charge for renting a truck for a certain number of hours. What is the value of the function for an input
of 4, and what does it represent?
Of(h) 50h + 10
=
$210, which is the total charge in dollars for renting 4 trucks
Of(h) = 50 - 10h
$40, which is the total charge in dollars for renting a truck for 4 hours
f(h) = 50h - 10
$190, which is the total charge in dollars for renting 4 trucks
Of(h) = 50+ 10h;
$90, which is the total charge in dollars for renting a truck for 4 hours. PLEASE HELP

User Dan Reedy
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1 Answer

15 votes
15 votes
Answer is the last choice
50 + 10h
$90 which is the total charge in dollars for renting a truck for 4 hours

What is the value of the function for an input of 4 and what does it represent?

The value of the input (x) of 4 is the amount of hours rented, which is the variable that can change.

Step by step

your equation is
y = mx + b
y is your total paid
m is your rate
x is your x hours rented variable
b is your y intercept, your fixed cost

y = $10x + $50 (or $50 + 10x same thing)

When you substitute 4 hours in for x you get
y = $10 (4) + $50
y = $40 + $50
y = $90
So the last answer is correct

Your x value is how many hours you rent and your output is your varied cost which is dependent on your x value. When your x value changes it directly affects your y value.
your input
User Messanjah
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2.8k points