Answer:
hi
Explanation:
Answer 
Slope between two given points (1,3) and (2,7) is 
m= 
2−1 
7−3 
 
 =4 
Then perpendicular slope is m 
1 
 
 = 
4 
−1 
 
 
The line equation with this slope is given by 
y= 
4 
−1 
 
 x+c.......(1) 
Now, the above line passes through the point (−4,−3) 
⇒−3= 
4 
−1 
 
 ×(−4)+c 
⇒c=−4 
Therefore required line is 4y+x+16=0 (Substitute 
′ 
 c 
′ 
 in (1) and simplify)