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Mathematics 21 Online
OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

Is this FLVS?

OpenStudy (anonymous):

Im doing it rn

OpenStudy (anonymous):

alg 1 sem 2 mod 7

OpenStudy (anonymous):

im way behind, was on vacation

OpenStudy (anonymous):

maybe, one sec

OpenStudy (welshfella):

divide the coefficient of t by 2 6 / 2 = 3 so we have f(x) = (t + 3)^2 - 9 - 20 = (t + 3)^2 - 29

OpenStudy (welshfella):

- thats vertex form

OpenStudy (welshfella):

ok the general form for veretx is (x - a)^2 + b where (a,b) is the coordinates of the vertex so comparing with our result the vertex is at (-3,-29)

OpenStudy (welshfella):

the coefficient od t^2 is positive so that makes the vertex a minimum.

OpenStudy (welshfella):

the axis of symmetry is the vertical line going through the point (-3,-29) can you tell me the equation of that line?

OpenStudy (welshfella):

yes you can work it out that way. but easier way is to note that vertex has t = -3 so axis of symmetry is t = -3

OpenStudy (welshfella):

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