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