The statement that correctly describes the slope is:
"The rate of speed the ballon rises in feet per minute"
What can we say about the slope?
Here we can see a linear relationship between the time and the height of a hot air balloon.
Here we can see that as the time increases, also does the distance, thus we have a positive slope.
Also, notice that the units of the slope are the ones in the vertical axis over the ones in the horizontal axis, so we will have the units:
[slope] = [ft/min]
So the slope is some kind of speed.
Now, from the given options, the only one that would describe the slope correctly is:
"The rate of speed the ballon rises in feet per minute"
If you want to learn more about slopes, you can read:
https://brainly.com/question/4074386