Please help and explain.

Answer:
-1/3
Step-by-step explanation:
Use the formula, (y2 - y1)/(x2 - x1). In this case, there is a negative slope.
Start from point, (1, 9) and go to point (4, 8).
Use the formula:
(y2 - y1)/(x2 - x1)
Y2 = 8
Y1 = 4
X2 = 9
X1 = 1
(8 - 9)/(4 - 1) = -1/3
Therefore, the slope is -1/3
Answer:
-(1/3)
Step-by-step explanation:
The answer is negative 1/3. Slope is the change in y divided by the change in x. Given two points, (4,8) and (7,7), the slope is negative 1/3