Answer: B
Number on the left: x-value
Number on the right: y-value
If there are 2 y-values for one x-value it is NOT considered a function.
For instance in the answer:
(2,3), (2,4), (3,3), (3,4)
You can clearly see that the x-values (2 & 3) repeat more than once; therefore, it is NOT a function.
On the other hand if you have 2 DIFFERENT x-values for the same y-value it IS A FUNCTION.
For ex D: (2,4), (3,4), (5,4), (6,4)
As you can see there are 4 DIFFERENT x-values with same y-value; therefore it is A FUNCTION
To make it easier:
If x-values appear more than once = NOT A FUNCTION
If x-values appear only ONCE = FUNCTION
Remember: y-values are ALLOWED to repeat
I hope this helps. If you have any questions please let me know in the comments.
Answer:
The number of Pumpkin can used = 48 cans
The number of Green Beans can used = 16 cans
Step-by-step explanation:
The ratio of Pumpkin to Green Beans = 3 : 1
So, for every 3 can of Pumpkin, 1 can of green beans is used.
Now, the total number of John wants to use = 64
Let us assume the common factor in the ratio is m.
⇒ The number of Pumpkin can used = 3 m
The number of Green Beans can used = 1 m = m
So, the Total cans used = Number of (Pumpkin + Green Beans) can
⇒ 3 m + m = 64
or, 4 m = 64
⇒ m = 64/ 4 = 16
Hence, The number of Pumpkin can used = 3 m = 3 x 16 = 48 cans
The number of Green Beans can used = m = 16 cans
-2(-5)^2 + 7
-2 • 5^2 + 7
-2 • 25 + 7
-50 + 7
-43
It would be to little because it would only be 30 cents
15 × 60 = 900
900 × 22 = 19800
The answer is 19800 screws
