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Mathematics 10 Online
klmjnmkj:

math problem

klmjnmkj:

@Florisalreadytaken

klmjnmkj:

1 attachment
klmjnmkj:

is the parabola opening down

Florisalreadytaken:

that is correct mate!

klmjnmkj:

1 attachment
klmjnmkj:

is it (-4, -5)

Florisalreadytaken:

no remember -- you should use \[ x= -\frac{b}{2a} \]

Florisalreadytaken:

where \[ b=-8 \] \[ a=-1 \]

klmjnmkj:

-8?

klmjnmkj:

x= -8

Florisalreadytaken:

\[ x=-\frac{-8}{2 \times -1} \rightarrow \ x=-\frac{-8}{-2} \rightarrow x=-4 \]

klmjnmkj:

i see thanks

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