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Mathematics 18 Online
OpenStudy (anonymous):

I need help with Graphs of Functions

OpenStudy (anonymous):

what o you nee help with mr

OpenStudy (anonymous):

OpenStudy (igreen):

Use the quadratic formula.

OpenStudy (campbell_st):

well you need the general quadratic formula \[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\] you need to substitute a = 4, b = 48 and c = 101 then evaluate hope it helps

OpenStudy (campbell_st):

you will have 2 solutions using the formula, so you will need to select both from the list

OpenStudy (igreen):

^^ \(x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}\) Input a = 4, b = 48, and c = 101: \(x = \dfrac{-48 \pm \sqrt{48^2 - 4(4)(101)}}{2(4)}\) Can you simplify that? @Starr_DynastyT

OpenStudy (anonymous):

\[-6 \sqrt{43}/2\] \[-6-\sqrt{43}\]

OpenStudy (anonymous):

forgot to add and my other 2

OpenStudy (campbell_st):

well done

OpenStudy (igreen):

Nice work.

OpenStudy (anonymous):

thank you learn from the best

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