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Looking to recieve help with finding the vertex of the parabola.

Looking to recieve help with finding the vertex of the parabola.-example-1
User Flori
by
7.3k points

1 Answer

4 votes

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

f(x) = - 2x² + 4x + 2

Step 02:

y = ax² + bx + c

a = -2

b= 4

c = 2

vertex of the parabola equation


yv\text{ =- }(b^(2)-4ac)/(4a)
\begin{gathered} yv\text{ = -}(4^2-4\cdot(-2)\cdot(2))/(4\cdot(-2)) \\ yv\text{ = -}\frac{(16+16)_{}}{-8} \end{gathered}

yv = (- 32) / (- 8)

yv = 4


xv\text{ = -}(b)/(2a)
\begin{gathered} xv\text{ =- }(4)/(2(-2)) \\ xv\text{ = }(-4)/(-4) \end{gathered}

xv = 1

Vertex:

(xv , yv ) = (1 , 4 )

The answer is:

The vertex of the parabola is (1 , 4)

User Martin Schmelzer
by
7.3k points