Question

BRAINLIEST! URGENT! If you can answer this, please help. If you can explain how you got that answer, I will mark you Brainliest.​

Answer 1

Answer:

$\mathrm{A.\:}x+2y=a$

Step-by-step explanation:

In standard form $ax+by=c$, any point the line passes through will make the inequality true. We can simply use any point given to find the equation of the line:

We can write the following system of equations from two points from the table:

$\begin{cases}d\cdot3a+e\cdot(-a)=f\cdot a\\d\cdot5a+e\cdot(-2a)=f\cdot a\end{cases}$

Solving, we get:

For $a \notin 0$,

$d=1,\\e=2,\\f=1$

Therefore, our equation is:

$dx+ey=fa,\\1x+2y=1a,\\\fbox{ x+2y=a }$.