Question

What is the value of a for which the lines x = 1, y = 2 and ax + 2y -6 = 0 are concurrent?

Answer 1

Answer:

a=2

Step-by-step explanation:

a×1+2×2-6=0

a+4-6=0

a=0-4+6

a=0+2

a=2

Answer 2

Answer:

a=2

Step-by-step explanation:

Put the values of x and y in the equation!

Put the values of x and y in the equation!ax+2y-6=0

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2a(1)+2(2)-6=0

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2a(1)+2(2)-6=0a+4-6=0

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2a(1)+2(2)-6=0a+4-6=0a+4=6

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2a(1)+2(2)-6=0a+4-6=0a+4=6a=6-4

Put the values of x and y in the equation!ax+2y-6=0 Put x=1 and y=2a(1)+2(2)-6=0a+4-6=0a+4=6a=6-4a=2