EM-1569

Substitution

E Math · Secondary 4 · Medium · Substitution

The variables

x

and

y

are connected by

y=\dfrac{1}{x^2}+\dfrac{2}{3x}

.

What is the value of

y

when

x=-1.5

, correct to 1 decimal place?

$0.0$
$-0.9$
$0.9$
$-0.3$

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