The value of the expression decreases
Answer:

Step-by-step explanation:

Expand brackets.

This is in quadratic form.

Since this is for equal roots:







Plug k as 0 to check.

False.
So that means k must equal 6.
The answer is A.
It is a translation 4 units to the right, and such is A.
Answer: C
Step-by-step explanation: l-7&!: