If a varies directly with b and a = -2 when b =3 what is the constant of variation

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21-05-2018
Mathematics

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If a varies directly with b and a = -2 when b =3 what is the constant of variation

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Аноним Аноним · Answer 1 · 2018-05-30T22:04:47+02:00

Аноним Аноним

30-05-2018

a varies directly with b → a = kb where k is the constant of variation (i.e. slope)

-2 = k × 3 ← substitute values into the formula above

-2/3 = k ← result of dividing both sides by 3

Answer: k = [tex] -\frac{2}{3} [/tex]

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