Question

graphically the pair of equation 7x-y=5;21x-3y=10 represent two which are they​

Answer 1

Answer:

GIVEN :

The pair of equations are 7x-y=5 and 21x-3y=10

TO FIND :

Graphically, the pair of equations 7x-y=5 and 21x-3y=10 represents which two lines.

SOLUTION :

Given pair of equations are 7x-y=5 and 21x-3y=10

From the given pair of equations are 7x-y=5 and 21x-3y=10 we get that

the 2nd equation 21x-3y=10 can be written as below

3(7x-y)=10

7x - 5 = 10/3

Comparing the equations we get that their slopes are equal and never intersect.

Hence they are parallel lines.

∴ the given pair of equations 7x-y=5 and 21x-3y=10 are parallel lines.