Question

show the line x - 2y - 7 equal to 0 and 2x + Y + 1 = 0 are and pendicular to each other find their point of intersection​

Answer 1

Answer:

x-2y-7=0

or, x=7+2y

also, 2x+y+1=0

or, 2(7+2y)+y+1=0

or, 14+5y+1=0

or, 5y+15=0

so, y= -3

then, x=7+2(-3)=1