Question

On comparing the ratios a1/a2, b1/b2, c1/c2find out whether the lines representing thefollowing pairs of linear equations intersect at a point, are parallel or coincident:

a) 5x-4y+8=0 and, 7x+6y-9=0
b) 9x+3y+12=0 and, 18x+6y+24=0

Answer 1

Answer:

a) intersecting at a point

b)coincident

Step-by-step explanation:

a) a1÷a2=5÷7

b1÷b2=-2÷3

c1÷c2=-8÷9

a1÷a2 is not equal to b1÷b2

it is intersecting at a point

b) a1÷a2=1÷2

b1÷b2=1÷2

c1÷c2=1÷2

a1÷a2=b1÷b2=c1÷c2

it is coincident