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Mathematics 7 Online
OpenStudy (ineedhelp10):

help with quadratics!!

OpenStudy (ineedhelp10):

write a quadratic equation that has a vertex at (4,-15)

OpenStudy (ineedhelp10):

@aum

OpenStudy (ineedhelp10):

@jdoe0001

OpenStudy (jdoe0001):

\(\large {\begin{array}{llll} (y-{\color{blue}{ k}})^2=4p(x-{\color{brown}{ h}}) \\ (x-{\color{brown}{ h}})^2=4p(y-{\color{blue}{ k}})\\ y=(x-{\color{brown}{ h}})^2+{\color{blue}{ k}}\\ x=(y-{\color{blue}{ k}})^2+{\color{brown}{ h}} \end{array} \qquad \begin{array}{llll} vertex\ ({\color{brown}{ h}},{\color{blue}{ k}})\\ \end{array} }\)

OpenStudy (ineedhelp10):

this confuses me

OpenStudy (jdoe0001):

pick any of the vertex quadratic forms

OpenStudy (jdoe0001):

hmm? you;'re given the vertex coordinates already, so just plug and chug :)

OpenStudy (ineedhelp10):

wait i think i got it

OpenStudy (ineedhelp10):

i got (x-4)^2-15

OpenStudy (jdoe0001):

yeap that'd be a quadratic with a vertex at (4, -15)

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