What is the axis of symmetry and root(s)?

Mathematics

2 answers:

ddd [48]2 years ago

6 0

Solving the second one

Vertex=(-3,0)

Axis of symmetry

It passes right at vertex of parabola
The axis is x=-3

Roots are the x intercepts

Roots=-3

svlad2 [7]2 years ago

5 0

Answer:

axis of symmetry: x = -3
root: x = -3

Step-by-step explanation:

As indicated in the example shown, the axis of symmetry is the vertical line through the vertex. That is, its equation is ...

x = <x-coordinate of vertex>

Here, the x-coordinate of the vertex is -3, so the axis of symmetry is ...

x = -3

The roots are the x-intercepts, the x-values where the graph touches or crosses the x-axis. When the graph only touches the x-axis, there is only one root. Here, the x-value of the point where the graph touches the x-axis is x = -3.

The root is x = -3.

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ra1l [238]

9514 1404 393

Answer:

9.90×10^-15

Step-by-step explanation:

The leading non-zero digit must be move 15 places to the left to put it in the units place. Having done that, its original value will be restored by multiplying by 10^-15.

Rounded to 3 significant figures, 989912345 becomes 990. The trailing zero must be kept as part of the number to indicate that there are 3 significant figures.

In scientific notation, the number is ...

9.90×10^-15

_____

<em>Additional comment</em>

If the number can be copied and pasted to a spreadsheet, it can be formatted to scientific notation with the required number of digits. Here, we can't copy the number from the image, so we have marked off the decimal places in a way that makes them easier to count. Copying the given number text would avoid any transcription errors.