The lines y equals=3x minus−1 and y equals=ax plus+2 are perpendicular if aequals=_______.
1 answer:
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Answer:
B
Step-by-step explanation:
y = is the equation of a horizontal line parallel to the x- axis.
A line perpendicular to it will be a vertical line parallel to the y- axis with equation
x = c
where c is the value of the x- coordinates the line passes through.
The line passes through (- 6, - 9 ) with equation
x = - 6 → B