Mathematics: The axis of symmetry for the graph of the function f(x) = -x2 + bx + 10 is x=6. What is the value of b? --3 Ο Ο Ο Ο

The axis of symmetry for the graph of the function

Ответ:

Teedollasign

29.07.2021

Step-by-step explanation:

$y = - x {}^{2} + bx + 10 \\ y = - (x {}^{2} - bx - 10) \\ y = -( (x - \frac{b}{2} ) {}^{2} - \frac{b {}^{2} }{4} - 10) \\ y = - (x - \frac{b}{2} ) {}^{2} + 10 + \frac{b {}^{2} }{4} \\ \\ therefore \: \frac{b}{2} = 6 \\ b = 12$

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Ответ:

kayli53531

12.05.2023

Mathematics

-0.91

Step-by-step explanation:

A linear relationship is said to be strong if the points on graph are close to a straight line ( correlation coefficient is nearest to 1) and weak if they widely scattered about the line ( correlation coefficient is nearest to -1) .

From the given graph it appeaser to be a strong negative correlation as the points are moving downwards diagonally close to a line which shows if one variable increases , the other decreases.

It means the correlation coefficient must be the nearest value to -1, i.e. -0.91.

Thus, the correlation coefficient most likely for the set of data shown =-0.91

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The axis of symmetry for the graph of the function f(x) = -x2 + bx + 10 is x=6. What is the value of b?
--3
Ο Ο Ο Ο

Ответ:

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