Find the slope of the line passing through the points (-8, 9) and (6, 9).

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?