Plzz asp and write answers and explaniation are the graphs of the parallel, perpendicular or neither
1.x-3y=6 and x-3y=9
2.7=4x+1 and y=-4x-2

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3