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Mathematics 18 Online
OpenStudy (anonymous):

vafv

OpenStudy (anonymous):

You do get y = 46 by substituting x = -1

OpenStudy (campbell_st):

ok... the equation you have been given is in vertex form substituting x = -1 you will get y = 46 but what you need to know is that for an equation \[y=(a - h)^2 + k\] (h, k) is the vertex of the parabola. Can you use this to identify the vertex in your question...?

OpenStudy (campbell_st):

almost the centre is (-8, -3) if you need a table of values choose x = -8 as the centre|dw:1423457298642:dw|\\ if you susbtitute these values anf record the y values you will see your parabola a lot easier as an example x = -11 y = 6 hope it helps

OpenStudy (campbell_st):

oops should read vertex (-8, -3) |dw:1423457457099:dw|

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