$\"\"$

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The equations of linear system are $\"\"$ .

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Write each equation in slope - intercept form or $\"\"$ , where m is slope and b is y - intercept.

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Rewrite the equation 1: $\"\"$ in slope - intercept form.

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Subtract 0.9x from each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Divide each side by negative 2.1.

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$\"\"$

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Cancel common terms.

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$\"\"$ .

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The slope of $\"\"$ is $\"\"$ and its y - intercept is $\"\"$ . $\"\"$

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Rewrite the equation 2: $\"\"$ in slope - intercept form.

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Subtract 1.5x from each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Divide each side by negative 3.5.

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$\"\"$

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Cancel common terms.

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$\"\"$ .

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The slope of $\"\"$ is $\"\"$ and its y - intercept is $\"\"$ .

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The two line equations have the same slope and the same y - intercept, so the system has infinitely many solutions. $\"\"$

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The linear system has infinitely many solutions.