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using the graph, determine the coordinate of the vertex of the parabolaa) two pointsb) one pointc) one equation

Using The Graph Determine The Coordinate Of The Vertex Of The Parabolaa Two Pointsb One Pointc One Equation class=

Sagot :

Vertex of parabola. ax^2 + bx + c

its defined by

x = ( -b/2a)

y = (4ac - b^2)/. 4a

Now find equation of parabola y = ax^2 + bx + c

ROOTs of parabola are

x = -6 ,. and. x= -2

Then multiply now

(x + 6) • (x +2 ) = x^2 + 8x + 12

THEN find a,b,c

a = 1,

b= 8

c= 12

Now finally find Vertex

Vertex = ( -8/2. , 4•12- 8^2/4)

Vertex = (-4 , -4)

So then coordinates for Vertex are

x = -4

y = -4

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