Give the equation of a line that goes through the point \( (-2,-6) \) and is parallel to the line \( -7 x-2 y=-4 \).
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The Deep Dive
To find the equation of a line parallel to the given line, we first need to determine the slope of the original line. We can rewrite the equation \( -7x - 2y = -4 \) in slope-intercept form (y = mx + b). Starting with the given equation, we isolate \( y \): \[ -2y = 7x - 4 \\ y = -\frac{7}{2}x + 2 \] The slope \( m \) of the given line is \( -\frac{7}{2} \). Since parallel lines share the same slope, our new line will also have a slope of \( -\frac{7}{2} \) and will pass through the point \( (-2, -6) \). Using the point-slope form of the equation of a line, \( y - y_1 = m(x - x_1) \): \[ y - (-6) = -\frac{7}{2}(x - (-2)) \\ y + 6 = -\frac{7}{2}(x + 2) \\ y + 6 = -\frac{7}{2}x - 7 \\ y = -\frac{7}{2}x - 13 \] Thus, the equation of the line that goes through the point \( (-2, -6) \) and is parallel to the given line is: \[ y = -\frac{7}{2}x - 13 \]