Solve the Problem $\$ 84,000$ After 7 Years the Value of the House Was

Multiple Choice

Solve the problem. Write all linear equations in slope-intercept form.
-A house was purchased for $\$ 84,000$ . After 7 years the value of the house was $\$ 147,000$ . Find a linear equation that models the value of the house after $x$ years.

A) $y = 147,000$
B) $y = 7 x + 84,000$
C) $\mathrm { y } = 9000 \mathrm { x }$
D) $y = 9000 x + 84,000$