49)

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Step 1:

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The line equation is $\"\"$ .

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Slope-intercept form line equation is $\"\"$ , where $\"\"$ is slope and $\"\"$ is $\"\"$ -intercept. $\"\"$ .

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Convert the equation into Slope-intercept form.

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$\"\"$

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Divide each side by $\"\"$ .

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$\"\"$

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Because the slopes of perpendicular lines are negative reciprocals, the slope of perpendicular is $\"\"$ .

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The perpendecular line equation is $\"\"$ .

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Find the $\"\"$ - intercept by substituting the point in the line equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Solution:

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The liner function is $\"\"$ .

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57)

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Slope-intercept form line equation is $\"\"$ , where $\"\"$ is slope and $\"\"$ is $\"\"$ -intercept. $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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65)

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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69)

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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71)

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$