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carlenstar281
 2 years ago
Best ResponseYou've already chosen the best response.0i think i graphed the line right but i am not sure can you help please

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.1its a concave up parabola, symmetric about the y axis, cuts the y axis at  4 and cuts the x axis at \[x = \pm \frac{2}{\sqrt{3}}\]

carlenstar281
 2 years ago
Best ResponseYou've already chosen the best response.0yes i understand that but does the line point up or down I graphed it on my paper as being up but im not 100 % sure if that's correct

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.1concave up... means dw:1364412258382:dw

carlenstar281
 2 years ago
Best ResponseYou've already chosen the best response.0ohhh its up are you sure

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1364412296139:dw

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.1The general from of a parabola is \[y = ax^2 + bx + c\] the value of a determines the concavity if a is negative the parabola is concave down is a is positive its concave up. in your question a = 3 which is positive, so concave up.
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