Given:
Line A goes through (0,y) and (-2,0).
Line B goes through (1,2) and (3,10).
To find:
The value of y for which the system of given linear equation (equation of line A and line B) has no solutions.
Solution:
Two linear equation has no solutions if they are parallel line.
Slope formula:
![m=(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2022/formulas/mathematics/college/bpkoq3bvkesp0enrhm14yweiccwgnbhsww.png)
We know that the slopes of two parallel lines are the same.
So, the given system of given linear equation has no solutions if
Slope of line A = Slope of line B
![(0-y)/(-2-0)=(10-2)/(3-1)](https://img.qammunity.org/2022/formulas/mathematics/college/xaduv1ho0scklymxfcpa35x1sak8kzm807.png)
![(-y)/(-2)=(8)/(2)](https://img.qammunity.org/2022/formulas/mathematics/college/5f55rx1oxcpsmqv7tk003c08duzu5afp1g.png)
![(y)/(2)=4](https://img.qammunity.org/2022/formulas/mathematics/college/ctilr6f5o7aw3dyr85gzy822siufe5tu6v.png)
Multiply both sides by 2.
![(y)/(2)* 2=4* 2](https://img.qammunity.org/2022/formulas/mathematics/college/rn1glfkh2cyknhd7s48psvsvkfnybhgxbz.png)
![y=8](https://img.qammunity.org/2022/formulas/mathematics/high-school/7ydenti3opbqb8a7akedn2d6aq77tuqzwr.png)
Therefore, the required value of y is 8.