Which of the following graphs represents a one-to-one function?

The 4th graph is one to one.

Step-by-step explanation:

Consider the provided graph.

Horizontal line test: If a horizontal line intersects a function's graph more than once, then the function is not one-to-one.

Remember: The function y = f(x) is a function if it passes the vertical line test.

Now consider the provided graph.

Graph 1: Draw the horizontal line as shown in figure 1.

Here, we can observe that the horizontal line intersect the graph more than once, therefore first graph is not one-to-one.

Graph 2: The second graph is not a function as it doesn't passes the vertical line test as shown in figure 2.

Graph 3: Draw the horizontal line as shown in figure 3.

Here, we can observe that the horizontal line intersect the graph more than once, therefore third graph is not one-to-one.

Graph 4: Draw the horizontal line as shown in figure 4.

Here, we can observe that the horizontal line intersect the graph not more than once, therefore fourth graph is one-to-one.

The fourth graph is one to one

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7