Question

From equations of regression lines, 4x + 3y + 7 = 0 and 3x + 4y + 8 = 0, find the mean of x and y

Answer 1

Answer:

X-y =1

x= 1+y

4(1+y)+3y+7= 4+4y+3y+7 = 11+7y

7y = -11

y = -11/7

x = 1+y

x = 1- 11/7

x= -4/7

Step-by-step explanation:

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