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.
(f+g)(x) = 2^x + 5x + 3x - 5
(f+g)(x) = 2^x + 8x - 5
answer
C. 2^x + 8x - 5
Answer:
80.7 inches
Step-by-step explanation:
circumference = 2 * pi * r
2 * pi * r = 507 inches
r = (507 inches)/(2 * pi)
r = (507 inches)/(2 * 3.14159)
r = (507 inches)/(6.2832)
r = 80.7 inches
Answer: V=1008π units³
Step-by-step explanation:
The formula for volume is 
. We can plug in our values to find volume.
Answer: This is not a right triangle.
the squares of the two shorter sides must add to the equal the square of the longest side.
a² + b² = c²
Step-by-step explanation:
5² + 5² ?=? 12²
25 + 25 ≠ 144
50 ≠ 144 So this is not a right triangle.
