How do you write an equation in slope intercept form with a point and the slope?

What is the multiplicative rate of change of the exponential function shown on the graph?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.