How to find the Axis of Symmetry

How to find the Axis of Symmetry

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains the concept of the axis of symmetry, particularly in quadratic equations. It begins by defining axis and symmetry, then introduces the equation for the axis of symmetry as x equals negative b over 2a. The tutorial includes an example problem to demonstrate how to apply the equation and plot the axis of symmetry on a graph. The video emphasizes understanding the equation and visualizing the axis as a vertical line on the coordinate plane.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does symmetry mean in the context of the axis of symmetry?

Different on each side

The same on both sides

A line that is horizontal

A line that is vertical

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula is used to find the axis of symmetry in a quadratic equation?

x = -2a/b

x = 2a/b

x = -b/2a

x = b/2a

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to be aware of signs when using the axis of symmetry formula?

Because it can lead to incorrect calculations

Because it changes the value of 'a'

Because it alters the y-intercept

Because it affects the direction of the parabola

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the equation -x^2 + 2x + 3, what is the value of 'a'?

2

1

-1

0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the axis of symmetry represent on a graph?

A horizontal line

A diagonal line

A curved line

A vertical line