text: relationship between the lines? problem 1: y=7x+4 and 2y=14x+5  answers: parallel perpendicular neither    problem 2: y=-8x+5 and y=-3-7  answers: parallel perpendicular neither    problem 3: y=2x-7 and y= 1/2x-2  answers: parallel perpendicular neither    problem 4: y=-1/4x+15 and y=4x-17  answers: parallel perpendicular neither   thank you very much to those who have been helping me. i'm getting help for a reason so stop telling me to do my own work! i've tried. problem 1: y=7x+4 and 2y=14x+5  answers: parallel   problem 2: y=-8x+5 and y=-3-7  answers: neither    problem 3: y=2x-7 and y= 1/2x-2  answers: neither    problem 4: y=-1/4x+15 and y=4x-17  answers: perpendicular `