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Line 
v has an equation of 
y=-(1)/(5)x+9. Line 
w includes the point 
(-10,1) and is parallel to line 
v. What is the equation of line w?

Line v v has an equation of y=15x+9 y=-\frac{1}{5} x+9 . Line w w includes the point (10,1) (-10,1) and is parallel to line v v . What is the equation of line w?

Full solution

Q. Line v v has an equation of y=15x+9 y=-\frac{1}{5} x+9 . Line w w includes the point (10,1) (-10,1) and is parallel to line v v . What is the equation of line w?
  1. Determine slope of line vv: Determine the slope of line vv.\newlineLine vv has the equation y=15x+9y = -\frac{1}{5}x + 9. The slope of a line in the form y=mx+by = mx + b is mm, where mm is the coefficient of xx.\newlineThe slope of line vv is 15-\frac{1}{5}.
  2. Find slope of line ww: Since line ww is parallel to line vv, it must have the same slope.\newlineThe slope of line ww is therefore also 15-\frac{1}{5}.
  3. Use point-slope form: Use the point-slope form to find the equation of line ww. The point-slope form of a line is yy1=m(xx1)y - y_1 = m(x - x_1), where mm is the slope and (x1,y1)(x_1, y_1) is a point on the line. We have the point (10,1)(-10, 1) and the slope 15-\frac{1}{5}.
  4. Substitute slope and point: Substitute the slope and the point into the point-slope form.\newlineUsing the point (10,1)(-10, 1) and the slope 15-\frac{1}{5}, the equation becomes:\newliney1=15(x(10))y - 1 = -\frac{1}{5}(x - (-10))\newliney1=15(x+10)y - 1 = -\frac{1}{5}(x + 10)
  5. Simplify equation: Simplify the equation to get it into slope-intercept form, y=mx+by = mx + b.\newliney1=15x15(10)y - 1 = -\frac{1}{5}x - \frac{1}{5}(10)\newliney1=15x2y - 1 = -\frac{1}{5}x - 2\newliney=15x2+1y = -\frac{1}{5}x - 2 + 1\newliney=15x1y = -\frac{1}{5}x - 1

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