Question

Answer the question below. it has multiple parts. I only need help with the last 4 bullets

Answer 1

In the above graph, the scatter plot and the line of best fit are shown.

The scatter plot shows a negative correlation (when x-values increase, y-values decrease). The correlation is very strong (all the dots lie on the line).

From the graph, the y-intercept is (0, 10)

The slope of the line (m) that passes through the points (x1, y1) is computed as follows:

`m=(y_2-y_1)/(x_2-x_1)`

Using the points (25, 5) and (30, 4) we get:

`m=(4-5)/(30-25)=-(1)/(5)`

The equation of a line in slope-intercept form is

y = mx + b

where m is the slope and b is the y-coordinate of the y-intercept.

Substituting with m = -1/5 and b = 10, we get:

`y=-(1)/(5)x+10`

From the graph, the x-intercept is (50, 0). This means that if a player practices 50 hours he/she will not make errors.