Using linear functions, we have that:
A.
For Company A: 
For Company B: 
B. The salaries will be the same after 7 years.
A linear function is given by:

In which:
- m is the slope, which is the rate of change.
- b is the y-intercept, which is the initial value.
Item a:
- For Company A, the salary starts at $31,000, with a raise of $3,000 each year. Thus,
, and the salary after n years is given by:

- For Company B, the salary starts at $38,000, with a raise of $2,000 each year. Thus,
, and the salary after n years is given by:

Item b:
- They will be the same after n years, for which:

Then




The salaries will be the same after 7 years.
A similar problem is given at brainly.com/question/24282972
Answer:
20 - 8
Step-by-step explanation:
Decreased = Subtraction
Very Simple
The dimension will be x(7x+1) centimetres squared
Answer:
y=-2
Step-by-step explanation:
this is a function
the input x = 2 so look for the line x=2
then look at the blue line, the function, and see at what point the line x=2 intersects the function. then find the value of the y coordinate of that point.