$\"\"$

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Two points of the line shown are $\"\"$ .

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Substitute the values of $\"\"$ in the slope formula $\"\"$ .

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$\"\"$ .

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To find the y - intercept, substitute the values of $\"\"$ in the slope - intercept from of equation $\"\"$ and solve for b.

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$\"\"$

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$\"\"$ . $\"\"$

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Add $\"\"$ to each side.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute the values of $\"\"$ in the slope - intercept form of equation $\"\"$ . $\"\"$

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

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The slope of required line is 3 times the slope of the line shown $\"\"$ .

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Therefore $\"\"$ .

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Substitute the values of $\"\"$ in the slope - intercept form of equation $\"\"$ .

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

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