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2 years ago

Which situation could be solved using the equation-4+4=0

Mathematics

1 answer:

Taya2010 [7]2 years ago

3 0

A change in temperature.

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-sqr(4x+6)-15<br><br> Find the domain.

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Step-by-step explanation:

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2 years ago

What is the vertex of the quadratic function below?

zysi [14]

Answer:

Option A: (4, -15).

Step-by-step explanation:

Given the quadratic function, y = x² - 8x + 1, where a = 1, b = -8, and c = 1:

<h3><u>Solve for the x-coordinate of the vertex:</u></h3>

We can use the following equation to solve for the x-coordinate of the vertex:

$\displaystyle\mathsf{x\:=\:\frac{-b}{2a}}$

Substitute the given values into the formula:

$\displaystyle\mathsf{x\:=\:\frac{-b}{2a}\:=\:\frac{-(-8)}{2(1)}\:=\:\frac{8}{2}\:=\:4}$

Hence, the x-coordinate of the vertex is 4.

<h3><u>Solve for the y-coordinate of the vertex:</u></h3>

Next, substitute the x-coordinate of the vertex into the given quadratic function to solve for its corresponding y-coordinate:

y = x² - 8x + 1

y = (4)² - 8(4) + 1

y = 16 - 32 + 1

y = -15

Therefore, the vertex of the given quadratic function, y = x² - 8x + 1, is: x = 4, y = -15, or (4, -15). Thus, the correct answer is Option A: (4, -15).

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1 year ago

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To find the population of a city next year, we multiply its current population by 0.987. By what percent does the population dec

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Answer:

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Step-by-step explanation:

$1 - 0.987 = 0.013$

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