SOLUTION: For what value of a are the equations 3x+12y=-6 and 6y=ax+9 perpendicular? A. 26 B. 24 C. -12 D. -1.5

Question 690256: For what value of a are the equations 3x+12y=-6 and 6y=ax+9 perpendicular?
A. 26
B. 24
C. -12
D. -1.5
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
3x+12y= -6
solve for y
12y = -3x - 6
y =
...
y =
...
slope is , a perpendicular line will have a slope of negative inverse.
...
A perpendicular line will have a slope of 4
...
6y = ax+9
y =
==> multiply both sides by 6
a = 24
...

��
Have more math questions? Get them all addressed at once.
HomeworkHelpers@ReadingBoosters.com
for quick, personalized coaching
www.MyHomeworkAnswers.com
--Reading Boosters

RELATED QUESTIONS
I've missed a lot of school because I've been sick and I'm trying to get all of my work... (answered by jsmallt9)

For what value of k are the graphs of 12y=-3x+8 and 6y=kx-5... (answered by jim_thompson5910,stanbon,MathLover1)

6.1 I. Solve each system by graphing, and classify the system as dependent or... (answered by Flake)

The two lines are perpendicular. Find the value of a: 3x � 2y � 6 = 0 and ax + 6y + 7... (answered by josgarithmetic)

1 . Simplify (63 � 45) � (33 � 45). A. 1340 B. 1350 C. 1300 D. 1400 2 . Simplify (answered by rfer)

1. What is the formula for the determinant of a 3 x 3 matrix ? A. B.... (answered by richard1234)

The system of equations below has multiple solutions, all of which satisfy the equation... (answered by algebrahouse.com,MathLover1)

For what value of k are the graphs of 12y=-3x+8 and 6y=kx-5 perpendicular? Thanks for... (answered by Fombitz)

the lines with equations x + 2y = 3 and 3y + Ax = 2 are perpendicular to each other .... (answered by Theo)