Plz im horrible at math if someone can that would be much appreciated

We need to compute the slope of the graph shown

m = (y2 - y1)/(x2 - x1)
m = (25-10)/(5-2)
m = 15/3
m = 5

The slope of 5 means the graph tells us "she is walking 5 feet per second".

So the first part of her walk is at 4 feet per second, then the second part of her walk is at 5 feet per second. The second part of her walk is faster. As a story scenario, perhaps she realizes she is going to be late getting home which is why she is walking a bit faster now. 

Yes, that is the correct formula. to solve this problem given the number of years, plug in the number of years for t and plug the whole thing into the