Question

the line 4x-ky=20 passes through the points A(8,-4) and B(b,2b) where k and b are constants
i) find the values of K and b

Answer 1

Answer:

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Answer 2

Answer:

k=3,b=2

Step-by-step explanation:

4x+KY=20->eq1

A(8,-4) sub in eq1

4*8+k*(-4)=20

32-4k=20

32-20=4k

4k=12

k=3

sub k in eq 1

4x+3y=20->eq 2

B(b,2b) sub in eq 2

4*b+3*(2b)=20

4b+6b=20

10b=20

b=2

Step-by-step explanation:

hope you understand properly