Final answer:
The key features of the two functions are: different slopes and intercepts due to different coefficients and constant terms.
Step-by-step explanation:
The two functions being compared are:
Function a: f(x) = 12x - 3
Function b: f(x) = 13x
Key Features:
- Both functions are linear functions.
- The coefficient of x in function a is 12, while in function b it is 13.
- Function a has a constant term of -3, while function b does not have a constant term.
These differences in coefficients and constant terms result in different slopes and intercepts for the two functions.