$\"\"$

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$\"\"$

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First find the slope of the line.

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$\"\"$

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$\"\"$ (Substitute 4 for x₁, 2 for y₁, -2 for x₂ and -4 for y₂)

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$\"\"$ (Simplify)

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$\"\"$

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$\"\"$

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Next find the y-intercept value by replacing m with 1, y with 2 and x with 4 in

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the equation $\"\"$ .

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$\"\"$

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Subtract 4 from each side)

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$\"\"$ (Additive inverse proeprty: $\"\"$ )

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$\"\"$ (Add: $\"\"$ )

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$\"\"$

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Replace m with 1 and b with –2 in the slope-intercept form line equation

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$\"\"$ .

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$\"\"$

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$\"\"$ (Simplify)

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$\"\"$

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The slope-intercept form line equation is $\"\"$ .