Question

the line 2x+3y+4=0 is perpendicular to 3x-ay+5=0 then a=

Answer 1

Answer:

Step-by-step explanation:

slope of first line =-2/3

slope of second line = -3/-a=3/a

given they are perpendicular    [-2/3 ] [3/a] = -1

                                                  -2/a= -1

                a = 2