precalc

9.) Write an equation of the line that passes through (-2,3) & is @parallel b) perpendicular to the line y=-4x+1

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  1. y = -4x+1 has slope -4
    so do all parallel lines
    perp. lines therefor have slope 1/4

    Now use your point-slope form for the line:

    parallel line is y-3 = -4(x+2)
    change the slope to 1/4 for the perpendicular line.

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