Q. Line v has an equation of y=−5x+6. Line w includes the point (−1,−2) and is perpendicular to line v. What is the equation of line w ?
Determine slope of line v: Determine the slope of line v. The equation of line v is given by y=−5x+6. The slope (m) of a line in the slope-intercept formy=mx+b is the coefficient of x. Therefore, the slope of line v is −5.
Find slope of line w: Find the slope of line w. Since line w is perpendicular to line v, its slope will be the negative reciprocal of the slope of line v. The negative reciprocal of −5 is 51. Therefore, the slope of line w is 51.
Use point-slope form: Use the point-slope form to find the equation of line w. The point-slope form of a line is given by (y−y1)=m(x−x1), where m is the slope and (x1,y1) is a point on the line. We have the slope of line w as 51 and the point (−1,−2). Plugging these values into the point-slope form gives us: (y−(−2))=51(x−(−1))
Simplify equation to slope-intercept form: Simplify the equation from the point-slope form to the slope-intercept form.Simplifying the equation from the previous step, we get:y+2=51(x+1)y+2=51x+51Subtracting 2 from both sides to solve for y, we get:y=51x+51−510y=51x−59
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