Answered

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Researchers collected data from a group of people who completed 30 minutes of moderate exercise based on their
age. The table and scatterplot show each person's age and the maximum heart rate in beats per minute (bpm) each
person reached while exercising.
Exercise Research
х
A) h(x)=2.9x-250
B)h(x)=4.2x-276
C)h(x)= -2.9x+250
D)h(x)= -4.2x+276
36
39
42
45 4854
h(x) 162 141 165 141 1371529081
h(x)
240
220
200
180
160
140
O
Maximum Heart Rate Reached
(bpm)
120
100
80
60)
0
5 10 15 20 25 30 35 40 45 50 55
Age (years)

Researchers Collected Data From A Group Of People Who Completed 30 Minutes Of Moderate Exercise Based On Their Age The Table And Scatterplot Show Each Persons A class=

Sagot :

Answer:

C

Step-by-step explanation:

The points wont be absolute on the line since they are decimals so you could gather 2 points like (27,162) and (32,141) and calculate for y which is y2-y1/x2-x1 but it would not give you the right answer so you would need to use linear regression using 3 values. First Calculate the sum of the x-values, then the y -values. Now sum the products of each data point and then, calculate the sum of the x-values squared and the y-values squared. Finally, count the number of data points you have. In this case we have three data points (N=3), then use the Number of points you have times the x and y sums you got from squaring and adding to get the slope.

Here is the article https://sciencing.com/equation-scatter-plot-8457448.html

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