The scatter plot shows the relationship between the test scores of a group of students and the number of hours they study in a week Test Scores and Hours Studying
Y У
A
100
90
80
70 +
60
Test Scores 50
40
30
20
10
0 1 2 3 4 5 6 7 8 9 10
Hours Studying
Part A: What is the group of points labeled N called? What is the point labeled Mcalled? Give a possible reason for the presence of point M. 5 points)
Part B: Describe the association between students test scores and the number of hours they study (5 points)

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

fwms@lil_ben06

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.