For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

Where:
m: It is the slope of the line
b: It is the cut point with the "y" axis
We have, according to the data provided, that the line is of the form:

That means that the slope is -1.
ANswer:

Answer:
Help with what? Be specific
Step-by-step explanation:
Its line 1
if we expand the second and third expressions they come back to the first.
The last one is called the vertex form of a parabola
Answer:
B. Gaining
Step-by-step explanation: