What do the following two equations represent?

y + 6 = -1/3(x - 15)

2x + 6y = 24

same line
parallel lines
perp lines
intersecting but not perp

parallel lines

Step-by-step explanation: when rearranging the equations to slope intercept form you should get

Y=-1/3x-1 and y=-1/3x+4. because the slopes are both -1/3 and they have different y intercepts, the lines are parallel

i'm assuming it's looking for the missing length, which should be 4cm

hope this !