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Chapter 2: Q3. (page 83)

OPEN ENDED Write a different prediction equation for the data in Examples 1 and 2 on pages 81 and 82.

Short Answer

Expert verified

A different predicted equation for example 1 isy=5x+110

Step by step solution

01

Step-1 – Write information from example 1 and 2

The table below shows the median selling price of new, privately-owned, one-family houses for some recent years.

Except for (0, 122.9), the data appear to lie nearly on a straight line.

02

Step-2 – Find slope for line

Taking points (4, 130) and (6, 140)

Slope = 140-1306-4 [鈭�Slope =y2-y1x2-x1]

=102=5

03

Step-3 – Using point-slope form

Point slope form : (y-y1)=m(x-x1)

Substituting values

(y鈭�130)=5(x鈭�4)y=5x+110

Hence,a different predicted equation for example 1 and 2 is y=5x+110

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