Answer:
Step-by-step explanation:
First choose two points on the line,
Let the points are A and B.
From point A to B we are moving downwards by (5 - 1 = 4 units)
Therefore, Rise = -4
Horizontal distance between A and B = 2 units
Therefore, Run = 2
Since, slope of a line =
Slope =
= -2
i have no idea
He multiplied 25 by 1 and then multiplied 25 by 9 correctly. He added the two partial products correctly