Which equation represents a line which is perpendicular to the line y=2x-4?

What is a graph with a never ending line called?

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Which of the following shows the length of the third side, in inches, of the triangle below