Question

HELP PLS…What is the rate of change during the interval: look at picture.

Answer 1

Take 2 points

• (10,3)
• (20,4)

Slope=Rate of change

• m=y_2-y_1/x_2-x_1
• m=4-3/20-10
• m=1/10
• m=0.1

Answer 2

`(1)/(10)=0.1`

Explanation:

From inspection of the graph:

• when x = 10, y = 3
• when x = 20, y = 4

Therefore:

let (x₁, y₁) = (10, 3)

let (x₂, y₂) = (20, 4)

Using the rate of change formula:

`\textsf{rate of change}=(y_2-y_1)/(x_2-x_1)=(4-3)/(20-10)=(1)/(10)`