3 years ago

Determine the domain and range of each function f(x)=-|x|-2

1 answer:

4 0

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

Domain: (- infinity, infinity)
Range: (- infinity, -2)

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3x + 5 and x=2, im having trouble understanding how im suppose to do this

velikii [3]

3x + 5 (first plug in 2 for x )

3(2) + 5 =
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Hope this helps . Give brainliest

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3 years ago

Which equations will the number 2 make true?

butalik [34]

Answer:

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Step-by-step explanation:

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I need some help on these questions thanks

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A plane travels south for 120 km. The plane then travels north for 45 km.

umka2103 [35]

Answer:

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Step-by-step explanation:

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4 years ago

What is the solution to the following equation? x2 + 3x + 4 = 0

andreev551 [17]

Answer:

$x=\dfrac{-3\pm \sqrt7i}{2}$

Step-by-step explanation:

The given equation is $x^{2}+3x+4=0$ .

We need to find the solution of the above equation.

The solution of an equation $ax^2+bx+c=0$ is :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

We have, a = 1, b = 3 and c = 4

$x=\dfrac{-3+ \sqrt{(3)^2-4(1)(4)} }{2}, \dfrac{-3- \sqrt{(3)^2-4(1)(4)} }{2}\\\\=\dfrac{-3+\sqrt{9-16}}{2}, \dfrac{-3-\sqrt{9-16}}{2}\\\\=\dfrac{-3\pm \sqrt7i}{2}$

So, the solution of the given equation is $\dfrac{-3\pm \sqrt7i}{2}$ .

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3 years ago