Question 79187
good so far ... being perpendicular means that the slopes are negative reciprocals ... y=mx+b ... m is slope, b is y-intercept


the original slope is -2 (the x coefficient), so the slope of the new line is 1/2, making the new equation y=(1/2)x+b


to find b, just plug in the point that the line goes thru ... 4=(1/2)*(-2)+b ... so b=5 ... new equation is y=(1/2)x+5