In the xy-plane, line l is perpendicular to the graph of the function f(x) = 5x - 2. Line l could be the graph of which of the following functions? A.) g(x) = -5x B.) g(x) = (-1/5)x C.) g(x) = x - 2 D.) g(x) = (1/5)x E.) g(x) = 5x Slope-intercept form is y = mx + b {in function notation it is f(x) = mx + b} m is the slope b is the y-intercept Perpendicular lines have slopes which are negative reciprocals of each other. In f(x) = 5x - 2 the slope is 5 To find the line perpendicular to that, you need a line with a slope of (-1/5) {the negative reciprocal of 5} B.) g(x) = (-1/5)x is perpendicular to the given line- Algebra House
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