Question

the regression line 5x+2y=16 and 9x+10y intersect is​

Answer 1

Given : lines 5x+2y=16 and 9x+10y = 48

To Find : Intersection point

Solution:

5x+2y=16    Eq1

9x+10y = 48  Eq2

5 * Eq1  

=> 25x + 10y = 80

Subtract Eq2

=> 16x  = 32

=> x = 2

Substitute x = 2  in Eq1

5x+2y=16

=> 5(2) + 2y = 16

=> 2y = 6

=> y = 3

Intersection point

x = 2 , y = 3

( 2, 3)

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