Answer:
If you mean only one rational solution, the answer is
If you mean at least 1 rational solution, the answer is
![k\in (-\infty, -8]\cup[8, \infty)](https://tex.z-dn.net/?f=k%5Cin%20%28-%5Cinfty%2C%20-8%5D%5Ccup%5B8%2C%20%5Cinfty%29)
Step-by-step explanation:
Let's calculate the discriminant.
Now, remember that:
Therefore, I will just consider the first two cases.
and
Answer:
bob
Step-by-step explanation:
Answer:
Answer is reflection across line. When transformation maps X"Y"Z" .Then first transformation for this composition is , and the second transformation is 90° rotation about point X'.
Step-by-step explanation:
When you transform a point across a line y=x then x-coordinate and y-coordinate changes.
Similarly when you reflect a point across the line y=-x then signs are changed and both coordinate change places.
It is the first transformation across the line.
