Answer:
m = - 1/4
Step-by-step explanation:
When two line is perpendicular to each other the product of them is - 1
So let the other line be B
Gradient of B = t
Gradient of A = 4

therefore m = - 1/4
Answer:
Bro math Step-by-step explanation:
Answer:
It's A
Step-by-step explanation:
Got it right on the practice :)