A function can be represented on a table and on a graph.
The models of the linear relationship between f(x) and x are:

The given parameters are:


So, the function that models the linear relationship is:

Substitute known values

Evaluate all products

Rewrite as:

By comparing the above function to the list of options, we have the true options to be:

Read more about linear functions at:
brainly.com/question/20286983
Real numbers, rational numbers, Integers, Whole numbers, and Natural numbers.
Answer:
The maximum number of sandwiches she can buy is 24.
Step-by-step explanation:
We can create a function to represent the cost of her team's lunch in function of the number of people in the team. We have:

Since she needs to stay on budget, the cost has to be less or equal to 170, therefore:

Since she can't buy 0.8 sandwiches, the maximum number of sandwiches she can buy is 24.
Answer : (0,3) U (3, ∞)
We need to find the interval(s) over which the function is decreasing
We look at the intervals of x where the graph is decreasing
Decreasing interval of the graph is the part where the graph goes down
We look at the part where the graph changes direction
In the middle inverted U shaped graph , the graph changes direction and start decreasing at x=0
the graph is decreasing till x=3
so first decreasing interval is x=0 to 3. we write it as (0,3)
After x=3 the graph starts decreasing and it goes to infinity
So the second decreasing interval is 3 to infinity . We write it as (3, ∞)
Now combine both intervals by a 'U' union
(0,3) U (3, ∞)
The equation would be:
x≥-4