The sum of two numbers $x$ and $y$ is 399, and the value of the fraction $\frac{x}{y}$ is 0.9. What is the value of $y - x$?
1 answer:
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Answer:
The answer to your question is: y = -1/2 x + 1
Step-by-step explanation:
Data
A (-4 , 3)
B (6, -2)
Formula
(y - y1) = m(x - x1)
Process
(y - 3) = -1/2 (x + 4)
2(y - 3) = -1(x + 4)
2y - 6 = -x - 4
2y = - x - 4 + 6
2y = - x +2
y = -1/2 x + 1