The problem is "Identify the quadratic function that contains the points (-1,1), (0,-2) and (2,4)." If someone could walk me through, step by step, it would be greatly appreciated. The answers are:
A. f(x) = + x + 1
B. f(x) = - x - 1
C. f(x) = - x + 2
D. f(x) = - x - 2

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

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

One positive number is 9 more than twice another. if their product is 95, find the numbers