Straight Line Problem

Algebra Level 1

2 x + 3 y = 5 6 x + a y = 15 2x+3y=5 \\ 6x+ay=15

If those two lines represent the same straight line then what is a a ?


The answer is 9.

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1 solution

Fahim Abid
Jan 12, 2016

2/6 = 3/a = 5/15, that's why a = 9

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