Answer
y=750
Work Step by Step
We find,
(y - y1) =$\frac{y_{2}- y_{1}}{x_{2}-x_{1}}$ $(x-x_{1})$
Here,
x= Income
y=Savings
(y-1000) = $\frac{-500-1000}{0-15000}$ (x-15000)
y-1000=$ \frac{1}{10}(x-15000)$
x-10y=5000
So, Slope = $(\frac{y2-y1}{x2-x1}) =\frac{1}{10}$
10 y= x-5000
y=$\frac{x}{10} - 500$
Verticle Intercept = -500
Thus:
y= $\frac{12500}{10}-500$
y=750
