Write an equation in Slopeintercept form for the line that is perpendicular to the line y = 2x  5 that passes through the given point (4,2). In the line y = 2x  5, the slope is 2. The perpendicular slope is 1/2 (4,2) , m = 1/2 {point and slope} y  y1 = m(x  x1) {pointslope form} y  (2) = (1/2)(x  4) {substituted point and slope into pointslope form} y + 2 = (1/2)x + 2 {used distributive property} y = (1/2)x {subtracted 2 from each side}  Algebra House
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