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OpenStudy (anonymous):
Write each function in vertex form, and identify its vertex. Plz show steps! f(x)=x^2+24x+138
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OpenStudy (anonymous):
for the vertex we need a pair (x,y) to find x we have a formula x=-b+2a
OpenStudy (anonymous):
lets identify a and b a is the coefficient of x^2 thats is 1 and be is the coefficient of x that is 24
OpenStudy (anonymous):
x=-24/2(1) x=-24/2 x=-12
OpenStudy (anonymous):
then to find y we plug -12 in the equation (-12)^2+24(-12)+138
OpenStudy (anonymous):
can u guess the answer?
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OpenStudy (anonymous):
Yeah. Y would be -6
OpenStudy (anonymous):
good
OpenStudy (anonymous):
so your vertex will be (-12,-6)
OpenStudy (anonymous):
Oh, great thanks!
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