The points (1, 5), (5, 10), (7, 8) and (8, 1) are on the graph of the function p. Which expression below gives the average rate of change of the function p on 5 ≤ x ≤ 8?

1. 1-5/1-10
2. 8-5/7-1
3. 1-10/8-5
4. 7-1/8-5

Respuesta :

Answer:

option C

Step-by-step explanation:

The points (1, 5), (5, 10), (7, 8) and (8, 1) are on the graph of the function p

To find average rate of change of the function p on 5 ≤ x ≤ 8

we pick two points (5,10)  and (8,1)

we apply slope formula

[tex]slope = \frac{y_2-y_1}{x_2-x_1}[/tex]

(5,10) is (x1,y1)   and (8,1) is (x2,y2)

Plug in the values in the formula

[tex]slope = \frac{1-10}{8-5}[/tex]

option C is correct

Answer:

c

Step-by-step explanation: