Solve the problem.
-A house was purchased for $\$ 80,000$. After 6 years the value of the house was $\$ 134,000$. Assume that the appreciation in value is given by a linear equation. Find the equation.
A) $y=80,000+9000 x$
B) $y=9000 x$
C) $\mathrm{y}=134,000$
D) $y=80,000+6 x$

Question

Quizplus · Accepted Answer

The appreciation is linear, so the equation is in the form $y = mx + b$. The initial value (b) is $80,000, and the increase over 6 years is $54,000 ($134,000 - $80,000), giving a slope (m) of $9,000 per year. Thus, the equation is $y = 80,000 + 9,000x$.

Solve the Problem $80,000\$ 80,000$80,000 After 6 Years the Value of the House Was

Solve the Problem $\$ 80,000$ After 6 Years the Value of the House Was