He wants to know whether there's a relationship between his average velocity and the number of pitches he throws. So, he recorded data from his last six games and organized it into this table.
Total Pitches
48
72
50
68
63
57
Average Speed (mph)
69
56
65
57
58
62
Part A
Question
Use the data tab of the graphing tool to display the data from Luther's table ina scatter plot, with x representing the
number of pitches thrown and y representing the average speed of the pitches. Select the relationship tab to add the
best fit linear function to the graph.
What are the equation of the line of best fit and the absolute value of the correlation coefficient?
line of best fit: y =|
x+
|correlation coefficient| =

ok

step-by-step explanation:

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step-by-step explanation:

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be