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jnlkmnjkm:

math problem

jnlkmnjkm:

1 attachment
jnlkmnjkm:

@Florisalreadytaken

snowflake0531:

Do you remember what we did last time, first tell me,w hat's the vertex coordinate point

jnlkmnjkm:

4, 1

snowflake0531:

Yes and we have \[a(x-h)^2 +k\] where (4,1) is (h,k) can you plug h and k in? what do you get?

jnlkmnjkm:

a(x-4)^2+1

snowflake0531:

Yes so we have \[y=a(x-4)^2 +1\] We now have to solve for x tell me a random coordinate point on the parabola that isn't the vertex

jnlkmnjkm:

2,3

jnlkmnjkm:

!@snowflake0531

snowflake0531:

I htink you meant (3,2) \[2 = a(3-4)^2 +1\] solve for a

jnlkmnjkm:

a(-1)^2+1

jnlkmnjkm:

1+1

jnlkmnjkm:

2 = 2

snowflake0531:

So, a=1

jnlkmnjkm:

a = 2?

snowflake0531:

no a=1 1= a(-1)^2 1 = a(1) a=1 or something like that anyways a=1

snowflake0531:

So we have \[(x-4)^2 +1\] since we have to convert this to standard form, can you do (x-4)^2 remember that\[(a-b)^2 =a^2-2ab+b^2\]

Florisalreadytaken:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @snowflake0531 no a=1 1= a(-1)^2 1 = a(1) a=1 or something like that anyways a=1 \(\color{#0cbb34}{\text{End of Quote}}\) do you realise what you just wrote?

snowflake0531:

no

Florisalreadytaken:

fair nuff

jnlkmnjkm:

is she correct

Florisalreadytaken:

positive

snowflake0531:

e.e i'm correct, i just said no bc floris was questioning me

snowflake0531:

so what is \[(x-4)^2+1\]

jnlkmnjkm:

x^2-8x+17

snowflake0531:

yep so there's you ranswer

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