What is the slope of the line shown in the graph?

  ·   14.10.2021 16:09
ANSWER(S)
answered: katiems5514
29.06.2019 07:30

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where, [tex]a = \frac{\sum y \sum x^2 - \sum x\sum xy}{n\sum x^2 - (\sum x)^2}[/tex]

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, [tex]\sum x = 158[/tex] ,   [tex]\sum y = 55[/tex],   [tex]\sum xy = 1315[/tex],

[tex]\sum x^2 = 4308[/tex] and   [tex]\sum y^2 = 629[/tex],

thus, slop of the given line is,

[tex]a = \frac{55\times 4308-158\times 1315}{6\times 4308-(158)^2}[/tex]

⇒   [tex]a = \frac{29170}{884}[/tex]

⇒   [tex]a =32.9977375566[/tex]≈ 33

answered: Mrdwarf7163
28.06.2019 14:30

answer

step-by-step explanation:

answered: darriennichole
27.06.2019 22:40

b and c

step-by-step explanation:

answered: einsigcn8481
25.06.2019 11:30

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

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