Provide an appropriate response.
-Find the equation of a line that is perpendicular to $5 x + 8 y = 11$ and has a $y$-intercept at $( 0 , - 9 )$.
A) $y = \frac { 8 } { 5 } x - 9$
B) $y = - \frac { 8 } { 5 } x - 9$
C) $y = \frac { 8 } { 5 } x + 9$
D) $y = - \frac { 5 } { 8 } x - 9$

Question

Quizplus · Accepted Answer

The slope of the given line is $-\frac{5}{8}$. A line perpendicular to it will have a slope of $\frac{8}{5}$. The equation with this slope and $y$-intercept $-9$ is $y = \frac{8}{5}x - 9$.

Provide an Appropriate Response 5x+8y=115 x + 8 y = 115x+8y=11

Provide an Appropriate Response $5 x + 8 y = 11$