In the $xy$-plane, line $k$ is defined by $x+y=0$. Line $j$ is perpendicular to line $k$, and the $y$-intercept of line $j$ is (0,3). Which of the following is an equation of line $j$ ?

MM

Mashaal Masha

Apr 12, 2024

In the $xy$-plane, line $k$ is defined by $x+y=0$. Line $j$ is perpendicular to line $k$, and the $y$-intercept of line $j$ is $(0,3)$. Which of the following is an equation of line $j$ ?

Difficulty: Hard

A:

$x+y=3$

B:

$x+y=-3$

C:

\(x-y=3\)

D:

$x-y=-3$

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ID: 6619b1f95f7d3515958e054c