EM-1555

Substitution

E Math · Secondary 4 · Medium · Substitution

The variables

x

and

y

are connected by

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

. Find the value of

y

when

x = -2.5

.

$11.625$
$5.375$
$-3.125$
$9.625$

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