Question

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

Answer 1

george floyd

Explanation:

cmon start bouncing

Answer 2

• 1.30 is the growth factor per week
• 985 mold spores after 4 weeks

Explanation:

The base of the exponential factor in a growth formula is the growth factor. Here, that is 1.30. It represents the multiplier of the number of spores each week.

Putting 4 into the formula, we find ...

f(4) = 345×1.30^4 ≈ 985 . . . . mold spores after 4 weeks