Does this set of ordered pairs represent a function? Why or why not? {(–1, 5), (0, –3), (2, 7), (4, 0), (7, 5)} A. No, because t
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Answer:
C. Yes, because every x-value corresponds to exactly one y-value.
Step-by-step explanation:
The list of x-values is {-1, 0, 2, 4, 7}. We note that no two are the same, so this is a functional relation.
The set of ordered pairs is a function because each x-value corresponds to exactly one y-value.
Answer:
y = 0.75x + 1.95
Step-by-step explanation:
It is given that the variables:
y stands for total cost
x for the amount of songs.
It is also given that each song costs $0.75 to download, and that there is a standard flat-fee of $1.95 (per month).
Set the equation:
total cost for the month = cost per song * amount of song + flat fee subscription
or
y = 0.75x + 1.95
~
The distributive property is when you have parenthesis like this ( ) and when a number is outside the parenthesis 5(2×3) like this you multiply the outside numbers by both inside numbers
Answer:
2.8
Step-by-step explanation:
The discount is 15% off. I started with subtracting $46.75 from $55. I got an $8.25 difference. I started with taking off 30% and got 16.5 which didn't match the 8.25 I got earlier. Then I went to 25% and then I went to 15%.