0.333 repeated since 1/3 is the same as 6/18 and 1/3 is 0.333.......
SO first you want to change it to Y=mX+b by getting the y by itself. Subtract 3x over and have -6y=-3x=12 divide both sides by -6 and have y=1/2x-2. To get the perpendicular slope you flip it 1/2 to 2 then change its sign 2 to -2
The new slope is -2
1) Vertical angles-the angles will equal each other.
8+7x=9x-4
12+7x=9x
12=2x
x=6
2) Supplementary-Angles will add up to 180
6+13x+7x+14=180
20+20x=180
20x=160
x=8
Answer: 4
Step-by-step explanation:
Perpendicular lines have reciprocal slopes