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Mathematics 15 Online
OpenStudy (darkbluechocobo):

f(x) = 2x^2 + 8x + 7

OpenStudy (darkbluechocobo):

@ganeshie8 would the vertex form of this be 2(x+2)^2 - 1

ganeshie8 (ganeshie8):

Looks good!!

OpenStudy (darkbluechocobo):

yay :D do you mind if i keep asking you questions aha :p you have answered so many

ganeshie8 (ganeshie8):

sure, as long as you're learning, which you're :)

OpenStudy (darkbluechocobo):

So the next one is 2x^2 + 3x − 4

ganeshie8 (ganeshie8):

Look at first two terms

OpenStudy (darkbluechocobo):

SO would the vertex form of this be 2(x+3/4)^2-41/8

OpenStudy (darkbluechocobo):

what about the first 2?

ganeshie8 (ganeshie8):

You're right! may i kniw how you worked it so fast ? :)

OpenStudy (darkbluechocobo):

Well i have been working on this quite a while before i ask i just basically double check here xD

OpenStudy (darkbluechocobo):

i have been doing these problems for about an hour or so

OpenStudy (darkbluechocobo):

So this one I know the vertex is (-1,-4). But I don't know how to find the axis of symetry

OpenStudy (darkbluechocobo):

f(x) = x^2 + 2x − 3

ganeshie8 (ganeshie8):

if vertex is (a, b) axis of symmetry would be : x = a

OpenStudy (darkbluechocobo):

so -1

ganeshie8 (ganeshie8):

axis of symmetry is a vertical line through vertex

ganeshie8 (ganeshie8):

-1 is a number, not an equation :/

OpenStudy (darkbluechocobo):

ohhhh so like|dw:1411428258787:dw|

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