Answer:
Yes; there is only one range value for each domain value
Step-by-step explanation:
A relation can be defined as a function f(x) if for each value of the domain of x, there exists a unique value of f(x).
For example
(2, 4)(3, 9)(-2, 4)(4, 16) Is a Function
(2, 4)(2,6)(3, 8)(3, -8) Is Not a Function
To analyze if the relationship shown is a function, you must observe that each value of the domain has a single value of the range assigned.
For the given points {(-5, 6), (-2, 3), (3, 2), (6, 4)} this requirement is satisfied. Therefore, the relationship is a function. The graph is shown in the attached image.
The correct option is: Yes; there is only one range value for each domain value
For this case we have:
If after 2 hours the marathon runner has traveled 22 kilometers we have:
2h -----------> 22km
Applying a rule of three, we can know the time it takes to run 42km. So, we have:
2h -----------> 22km
x -------------> 42km
Where "x" is the time it takes to travel 42km. Resolving we have:
Thus, after 3.82 hours the marathon runner will travel 42km.
Answer:
3.82 hours
