Sjdjdkzjdkdncmdkdjfnkrmd, sjdjdjdjd dkdkcekdkdk djdjjdkdjdj ..
Answer:
![-4x+y=-5](https://tex.z-dn.net/?f=-4x%2By%3D-5)
Step-by-step explanation:
It is given that he vector y = ai + bj is perpendicular to the line ax + by = c.
Given given point is P(-1,-9) and given vector is v = -4i + j.
Here, a = -4 and b= 1.
We need to find the equation of the line through P perpendicular to v.
Using the above fact, the vector v = -4i + j is perpendicular to the line
![(-4)x+(1)y=c](https://tex.z-dn.net/?f=%28-4%29x%2B%281%29y%3Dc)
... (1)
The line passes through the point (-1,-9).
Substitute x=-1 and y=-9 in the above equation to find the value of c.
![-4(-1)+(-9)=c](https://tex.z-dn.net/?f=-4%28-1%29%2B%28-9%29%3Dc)
![4-9=c](https://tex.z-dn.net/?f=4-9%3Dc)
![-5=c](https://tex.z-dn.net/?f=-5%3Dc)
The value of c is -5.
Substitute c=-5 in equation (1).
![-4x+y=-5](https://tex.z-dn.net/?f=-4x%2By%3D-5)
Therefore the equation of line which passes through P and perpendicular to v is -4x+y=-5.
Answer:
-2-(-16)=14
Step-by-step explanation:
Use KCC rule