Question

What is the slope of the trend line drawn into the scatter plot?

Answer 1

Formula for slope:
`(y2-y1)/(x2-x1)`
Plug in points given:
`(136-27)/(13-2) = (109)/(11) = 9.9 = 9 (9)/(10) (Rounded)`
Slope:
`9.9 = 9 (9)/(10)`

Answer 2

9.9 is the slope of the trend line drawn into the scatter plot

Explanation:

Using slope formula:

`\text{Slope} =(y_2-y_1)/(x_2-x_1)` ....[1]

As per the statement:

Consider two points from the given graph:

`(2, 27)` and (13, 136)

Substitute in [1] we have;

`\text{Slope} =(136-27)/(13-2)`

⇒
`\text{Slope} =(109)/(11)`

Simplify:

`\text{Slope} \approx 9.9`

Therefore, 9.9 is the slope of the trend line drawn into the scatter plot