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Formula
Solve the equation
Answer
Graph
$x - y = - 1$
$x$Intercept
$\left ( - 1 , 0 \right )$
$y$Intercept
$\left ( 0 , 1 \right )$
$x-y = -1$
$x = y - 1$
 Solve a solution to $x$
$x \color{#FF6800}{ - } \color{#FF6800}{ y } = - 1$
 Move the rest of the expression except $x$ term to the right side and replace the sign 
$x = - 1 \color{#FF6800}{ + } \color{#FF6800}{ y }$
$x = \color{#FF6800}{ - } \color{#FF6800}{ 1 } \color{#FF6800}{ + } \color{#FF6800}{ y }$
 Organize the expression 
$x = \color{#FF6800}{ y } \color{#FF6800}{ - } \color{#FF6800}{ 1 }$
$y = x + 1$
 Solve a solution to $y$
$\color{#FF6800}{ x } - y = - 1$
 Move the rest of the expression except $y$ term to the right side and replace the sign 
$- y = - 1 \color{#FF6800}{ - } \color{#FF6800}{ x }$
$- y = \color{#FF6800}{ - } \color{#FF6800}{ 1 } \color{#FF6800}{ - } \color{#FF6800}{ x }$
 Organize the expression 
$- y = \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 1 }$
$\color{#FF6800}{ - } \color{#FF6800}{ y } = \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 1 }$
 Change the sign of both sides of the equation 
$y = x + 1$
 그래프 보기 
Linear function
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