Question 851646
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Hi,
Line through (-4,1) <u>perpendicular</u> to {{{y=highlight(-3)x+1 }}}, m = -3
***Using point-slope form, {{{y - y[1] = m(x - x[1])}}}
{{{ y -1 = highlight(1/3)(x+4)}}}    |Note the "negative reciprocal" of -3 is   1/3
 y = (1/3)x + 4/3 + 3/3
 y = (1/3)x + 7/3