The ordered pairs written below represent a function. What is the rule that represents this function?
(0,0)
(1,4)
(3, 12)
(5, 20)
(1 point)
Responses
y = 3x
3
y = 3 x
y = x2
2
y = x squared
x = y3
3
x = y over 3
x = 3y
3
x = 3 y
y = x3
3
y = x cubed
x = y3
3
x = y cubed
y = 4x2
2
y = 4x2
y = x3
3
y = x over 3
y = 4x
The rule that represents this function is y = 4x
Question
The animal shelter is buying dog food. The function d(n) = 12n represents the number of cans of dog food needed for n dogs. How many cans of dog food are needed for 15 dogs?(1 point)
Responses
144 cans
144 cans
180 cans
180 cans
1.25 cans
1.25 cans
99 cans
99 cans
0.8 cans
0.8 cans
108 cans
108 cans
27 cans
27 cans
3 cans
To find out how many cans of dog food are needed for 15 dogs, we can use the function d(n) = 12n.
Substituting n = 15 into the function, we have:
d(15) = 12(15) = 180
Therefore, 180 cans of dog food are needed for 15 dogs.
To find the rule that represents this function, we need to look for a pattern in the ordered pairs.
We can see that the second number (y-value) is always 4 times the first number (x-value).
So the rule that represents this function is y = 4x.