8. Between 1980 and 1990, the population of Naples, Florida increased by

approximately 6000 people per year. In 1980, the population was 80,000 (0,

80,000) Write an equation that gives the population , y, in terms of the year, x.

(Let x=0 correspond to 1980) *

y = 80,000x + 6,000

O

y = 6,000x + 80,000

y = 6,000x + 1980

O

y = 80,000x + 1980

Step-by-step explanation:

Givens

We know that the linear form has an explicit form

Where is the constant ratio of change and is the y-intercept. Replacing given values, we have

Therefore, the right answer is B.

n

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!