Let us find the slopes of the two lines
ax+by=c, slope m1 = -a/b
bx-ay=c, slope m2 = b/a
m1*m2 = (-a/b)(b/a) = -1
Therefore the two lines are perpendicular so the answer is D
Answer:
54
Step-by-step explanation:
Given:
![3(a + b + c) 2](https://tex.z-dn.net/?f=3%28a%20%2B%20b%20%2B%20c%29%202)
Input the numbers provided into the equation
3(2 + 3 + 4)2
Add all of the numbers inside the parentheses
3(9)2
Multiply
3 * 2 = 6
6 * 9 = 54
2 x 117
3 x 78
6 x 39
9 x 26
13 x 18