Standard Form

1. D. $-3 x+y=11$

Standard linear equations are in the general form $A x+B y=C$ where $A$, $B$, and $C$ are constants.

Usually, $A$, $B$, and $C$ are integers.

$y-8=3(x+1)$ written in standard form is $-3 x+y=11$.

2. D. $-4 x+5 y=10$

Standard linear equations are in the general form $A x+B y=C$ where $A$, $B$, and $C$ are constants.

Usually, $A$, $B$, and $C$ are integers.

$y=\frac{4}{5} x+2$ written in standard form is $-4 x+5 y=10$.

3. C. $-7 x+y=-61$

Standard linear equations are in the general form $A x+B y=C$ where $A$, $B$, and $C$ are constants.

Usually, $A$, $B$, and $C$ are integers.

$y+5=7(x-8)$ written in standard form is $-7 x+y=-61$.

4. D. $3 x+10 y=-80$

Standard linear equations are in the general form $A x+B y=C$ where $A$, $B$, and $C$ are constants.

Usually, $A$, $B$, and $C$ are integers.

$y=-\frac{3}{10} x-8$ written in standard form is $3 x+10 y=-80$.