Factoring out a negative 1 to complete the square and graph your parabola

Factoring out a negative 1 to complete the square and graph your parabola

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers solving quadratic equations by factoring and completing the square. It explains the process of grouping terms, factoring out constants, and using the vertex form for graphing. The tutorial also discusses the concepts of domain and range, and how to determine the maximum or minimum points of a graph. The teacher emphasizes understanding the axis of symmetry and the effects of negative coefficients on graph orientation.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in factoring a quadratic equation?

Calculating the domain

Grouping the first two terms

Determining the axis of symmetry

Finding the vertex

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When completing the square, what is the result of B/2 squared if B is -8?

-16

-4

16

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the vertex of the quadratic equation in vertex form?

(2, -2)

(4, -4)

(0, 0)

(-4, 4)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a negative sign in front of a quadratic equation affect its graph?

It shifts the graph to the right

It stretches the graph

It compresses the graph

It opens the graph downwards

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the domain of a quadratic function?

Numbers greater than zero

All real numbers

All negative numbers

All positive numbers

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the range of the quadratic function discussed in the video?

All real numbers

From -4 to infinity

From 0 to infinity

From negative infinity to -4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum point of the graph?

(2, -2)

(4, -4)

(0, 0)

(-4, 4)