Using linear function concepts, it is found that the correct statements are given by:
1. The slope is positive.
3. every additional hat produced results in a cost increase of $.60.
What is a linear function?
A linear function is modeled by:
[tex]y = mx + b[/tex]
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0.
In this problem:
- When the amount increases by 10, the cost increases by $6, hence the slope is of m = 6/10 = 0.6.
- The y-intercept is the amount of producing 0 hats, which is of b = 105 - 6 = 99.
Hence statements 1 and 3 are correct.
More can be learned about linear function concepts at https://brainly.com/question/24808124