Using linear functions, it is found that:
Plan B is better than Plan A when Curt's sales are more than $21,000.
What is a linear function?
A linear function is modeled by:
y = mx + b
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, and can also be interpreted as the initial value of the function.
For the functions in this problem, we have that:
- The salary is the intercept.
- The commission is the slope.
Hence the functions are given as follows:
- B(x) = 1350 + 0.15(x - 9000).
Plan B is better when:
B(x) > A(x).
Hence:
1350 + 0.15(x - 9000) > 1050 + 0.1x
0.05x > 1050
x > 1050/0.05
x > 21000.
Plan B is better than Plan A when Curt's sales are more than $21,000.
More can be learned about linear functions at https://brainly.com/question/24808124
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