Question

graphiclly the pair of pair of equations 7 x - 9 =5 and 21 x - 3y = 15 represtents options interesting at two paints, parallel, intersecting at two paint, coincident​

Answer 1

Here,

a1/a2=7/21

=1/3

b1/b2=-9/-3

=3/1

Thus a1/a2is not equal to b1/b2

Thus the graph of the eqn intersect at a point.