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Olin [163]
3 years ago
15

Find the equation of the axis of symmetry of the following parabola algebraically.

Mathematics
1 answer:
Sonja [21]3 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

y = 2x² − 4x − 14

y = 2 (x² − 2x) − 14

y = 2 (x² − 2x + 1) − 14 − 2(1)

y = 2 (x − 1)² − 16

The vertex of the parabola is at (1, -16).  So the equation of the line of symmetry is x = 1.

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<h3>What is the margin of error(MOE)?</h3>

It is defined as an error that gives an idea about the percentage of errors that exist in the real statistical data.

As we know, the sample size can be evaluated using the expression:

\rm ME = Z_c\sqrt{\dfrac{pq}{n}}

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\rm n = \dfrac{Z^2}{ME^2}(pq)

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Z at α 0.05   (because 95% confident)

= 1.960  

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Thus, the sample size is, 9604 if you want to obtain a sample to estimate a population proportion at this point in time, you have no reasonable estimate for the population proportion.

Learn more about the Margin of error here:

brainly.com/question/13990500

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