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The equation of the line shown is $\"\"$ .

The equation of the required line has same y - intercept of line shown and has 3 times of the line shown is $\"\"$ .

The equation of the required line has same slope of line shown and has 6 more than the y - intercept of the line shown is $\"\"$ .

Observe the three equations, the two equations $\"\"$ which have same y - intercept are intersect and the two equations $\"\"$ which have same slope are never intersect. $\"\"$

The equations $\"\"$ of graph is

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The two equations $\"\"$ which have same y - intercept are intersect and the two equations $\"\"$ which have same slope are never intersect.