Question

1.Graphically, the pair of linear equations 5x-y=7 and 15x-3y=21 represent
lines which are:
a) intersecting at one point
b) parallel
c) intersecting at two points
d) coincident​

Answer 1

Answer:

coincident

this is the answer

Answer 2

Graphically, the pair of linear equations 5x-y=7 and 15x-3y=21 represent  lines which are coincident

Therefore, option (d) is correct.

Step-by-step explanation:

The given linear equations

$L_1: 5x-y=7$

$L_2: 15x-3y=21$

Dividing the equation of line $L_2$ by 3

We get

$L_2: 5x-y=7$

We can see that both the linear equations are same

Therefore, if we plot the graph of the equations, it will be straight line and both the lines will be coincident.

Hence, option (d) is correct.

Hope this answer is helpful.

Know More:

Q: Graphically, the pair of equations 7x-y=5;21x-3y=10 represents two lines

which are:

Click Here: https://brainly.in/question/17183297

Similar Ques: https://brainly.in/question/16687274