SHOW YOUR WORK or explain your answer. Determine whether the lines are parallel, perpendicular, or neither. 4x-5y=6 and 10y-8x=22 x=-3 and y=7

Answer 1

1st two equations are parallel lines

last two are perpendicular

last two are a vertical and horizontal line with slopes = undefined and zero

first two have the same slope = 4/5 = 8/10, so they're parallel. If lines have the same slope they're parallel (unless they have the same y intercept, then they're the same identical line. Parallel lines never intersect. Identical lines intersect at every point)