Solve 9^(x + 4) = 11 for x using the change of base formula log base b of y equals log y over log b. EDIT: nevermind I got the answer it's −2.90867083

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.

Which of the following exponential functions goes through the points (1, 6) and (2, 12)? f(x) = 3(2)x f(x) = 2(3)x f(x) = 3(2)−x f(x) = 2(3)−x

What is the equation of a line that passes through points (0, 4) and (-4,-8)?