SOLUTION: Find the value of $a$ so that the lines with the given equations are perpendicular. \begin{align*}
y &= 2x+13 \\
6y+ax &= 6.
\end{align*}
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-> SOLUTION: Find the value of $a$ so that the lines with the given equations are perpendicular. \begin{align*}
y &= 2x+13 \\
6y+ax &= 6.
\end{align*}
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Question 1121470: Find the value of $a$ so that the lines with the given equations are perpendicular. \begin{align*}
y &= 2x+13 \\
6y+ax &= 6.
\end{align*} Answer by ikleyn(52786) (Show Source):
y = 2x + 13 has the slope of 2.
6y +ax = 6 is the same as y = and has the slope of .
You want to have = (perpendicularity condition), which leads you to
= ; hence, a = = 3.
Answer. a = 3.
Solved.
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