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:yellow .
Step-by-step explanation: you’re moving over 2 to the right. Right is positive. Down is negative, and since you’re doing 2 to the right, and down 1, we have (2,-1)
Answer:
9 wagon stamps and 1 sailboat stamp!
Step-by-step explanation:
7×4= 28
28+3=31
Answer:
There is a 30% decrese.
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
If I'm not mistaken, the answer must be 0.
7-7 is 0, that cancels out
0 divided by -4w is zero. That leaves w alone
w=0. I think that's the answer.
