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PLEASE PLEASE HELP ME Identify the

following:
12. Vertex:

13.Does the graph open up or open down

14.what is the minimum/maximum value

15.Equation for Axis of Symmetry

16.y-intercept

17.x-intercept

PLEASE PLEASE HELP ME Identify the following: 12. Vertex: 13.Does the graph open up-example-1
User Alj
by
8.2k points

1 Answer

5 votes

Vertex?

-x^2 - 2x + 3

-(x^2 + 2x + 1) + 3 - 1

-(x + 1)^2 + 2

a(x – h)^2 + k

Vertex = (h, k)

Vertex = (-1, 2)

Does the graph open up or open down?

Because of the negative at the beginning of the equation, it opens down. (also look at the graph)

What is the minimum/maximum value?

The minimum/maximin is the vertex, and in this case,

it is a maximin (-1, 2)

Equation for Axis of Symmetry

The axis of symmetry is just the x value of the vertex

x = -1

y-intercept

In standard form (ax^2 + bx + c)

The c value is the y-intercept

(0, 3)

x-intercept

-x^2 - 2x + 3

-(x^2 + 2x - 3)

-(x + 3)(x - 1)

(-3, 0) and (1, 0)

You can also look at the graph for most of these answers

User Farrukh Chishti
by
8.3k points

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