9.9 Features of Parabolas.notebook March 21, 2016

March 21st Due Next Class:  9.9 Delta Math

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Unit 9: Quadratic Functions

Lesson 9.9 Features of Parabolas

1) Write each quadratic equation in standard form.

2) Identify the roots or vertex point of each parabola.

a) f(x) = 3(x2)(x5) b) y = (x4)2 + 112

9.9 Features of Parabolas.notebook March 21, 2016

a) f(x) = 3(x2)(x5) b) y = (x4)2 + 112

How do the features of each parabola relate to the form of the equation that was given?

Root Form: y = a (x r1) (x r2)

Roots: r1 & r2

Vertex Form: y = a(x h)2 + k

Vertex : (h, k)

f(x) = 3x2 + 21x 30 y = x2 4x + 912

9.9 Features of Parabolas.notebook March 21, 2016

How does the value of a affect parabola?

Value of a Affect

Positive [a > 0]

Negative [a 

9.9 Features of Parabolas.notebook March 21, 2016

Root Form: y = a (x r1) (x r2)

Roots: r1 & r2

9.9 Features of Parabolas.notebook March 21, 2016

Vertex Form: y = a(x h)2 + k

Vertex : (h, k)

9.9 Features of Parabolas.notebook March 21, 2016

Try it yourselfie9.9 Features of ParabolasDelta Math Assignment

Root Form: y = a (x r1) (x r2)

Roots: r1 & r2

Vertex Form: y = a(x h)2 + k

Vertex : (h, k)

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