How would a coupon change the unit rate/price per item?

What is a graph with a never ending line called?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)