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Svet_ta [14]
3 years ago
7

Which equation BEST represents the line of best fit for the scatterplot?

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0
The right answer is: D\

Because y = −0.005x + 22.5

<span>Choose 2 </span>points<span> to find the </span>slope: (1500, 12.5) and (1000,15)

<span>15 − 12.51000 − 1500</span><span> = −0.005 </span>

Also, the y-intercept is approximately 22.5.

y = −0.005x + 22.5<span> is correct, which is D.

</span>
Marizza181 [45]3 years ago
5 0
B
at first we need a negetive gradient

at second we need the more valuance gradient
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Please help! I need an immediate correct answer please see attachment thanks so much
MA_775_DIABLO [31]

Label the vertices A (- 3, - 2), B (- 7, - 3 ), D (- 4, - 5 )

and the centre of dilatation C (- 7, - 6 ), then

CA = a - c = < - 3, - 2 > - < - 7, - 6 > = < 4, 4 >

CA' = 3 < 4, 4 > = < 12, 12 >

A' = (- 7 + 12, - 6 + 12 ) = ( 5, 6 )

CB = b - c = < - 7, - 3 > - < - 7, - 6 > = < 0, 3 >

CB' = 3 < 0, 3 > = < 0, 9 >

B' = (- 7 + 0, - 6 + 9 ) = (- 7, 3 )

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Summarising

(- 3, - 2 ) ⇒ (5 , 6 )

(- 7, - 3 ) ⇒ (- 7, 3 )

(- 4, - 5 ) ⇒ (2, - 3 )





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