HELP HELP HELP HURRY HURRY The table below shows the fourth powers of different numbers:
Number (x)
1 ,-1 ,3,-3
Fourth power of the number (y) 1,1,81,81
Part A: Does the table represent y as a function of x? Justify your answer. (5 points)
Part B: The total cost f(x), in dollars, for renting a townhouse for x months is shown below:
f(x) = 875x + 750
What is the value of f(12) and what does f(12) represent? (5 points)

Part A: yes it is a function because every input value (x) produces only one output value (y).

Note: It is still a function if different x values produce the same y value, in this case, x=1 and x=-1 produce the same y value 1, but it is NOT a function if y=1 and y=-1 have the same x value x=1.  

Part B: when x=30: f(30)=17*30+50=560

if means that the cost of renting the truck for 30 hours is 560 dollars.

this help?

black/brown

step-by-step explanation:

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answer