Indicate whether the lines are parallel, perpendicular, or neither. justify your answer. a. y = 4x − 1 and 12x = 3y + 7

These lines would be perpendicular.

If we divide 3y+7 by 12, we would get 1/4y+7/12

Now, if we re arange for y, we get: y=-1/4x+7/3

In this case, the y intercept (7/3) does not matter, only the slope does. The slope must be the opposite reciprical of the other slope. For instace if the slope was 4, the perpendicular lines slope must be -1/4. That is the exact case we have above.

Really hope that I helped :)

Let me know if you have any furthere questions!

-CSX

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it