I am answering this for points, so don’t know for sure but I think you might find 6.9
<h2>SOLVING</h2>

What's the equation with a slope of -4 that goes through (-1,1)? find it

The equation used, here is
.
| simplify after putting in the information given





Answer:
Real rate = Interest rate - Inflation rate
Here, real rate will be ZERO.
When real rate of return os ZERO annual saving will be Value/Years.
Hence, available real annual savings is $15,300 ($459,000/30)
Step-by-step explanation:
Angle pair 1 and 2 are vertical.
Angle pair 5 and 6 are adjacent.