3 years ago

Determine if the following is a function or not -4,8 -2,8 0,24 4,24 2,16

2 answers:

6 0

Yes, that is a function. Since each x value only maps to one y value, it passes the vertical line test and is a function.

erastovalidia [21]3 years ago

4 0

Answer:

I think that is a function

Step-by-step explanation:

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4 years ago

Solve for V:<br><br>V+9/15=0

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3 years ago

Which of the following is equivalent to the complex number -8(7i - 3i^2)

Leni [432]

Answer: B) -56i - 24

This is the same as -24 - 56i

=============================================

Explanation:

The 'i' refers to the imaginary number $\sqrt{-1}$

In other words, $i = \sqrt{-1}$

Squaring both sides gets us $i^2 = -1$

So,

$x = -8(7i - 3i^2)\\\\x = -8(7i - 3(-1))\\\\x = -8(7i + 3)\\\\x = -8(7i) -8(3)\\\\x = -56i -24 \ \ \text{ .... Answer: Choice B}\\\\x = -24 - 56i\\\\$

The result is in the form a+bi where a = -24 is the real part and b = -56 is the imaginary part.

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3 years ago

What is the first step when rewriting y = 3x2 + 9x - 18 in the form y = a(x h)^2 + k?

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

y = 3*2 + 9x - 18

First step in this case is to multiply 3 * 2 = 6.

Then you would have: 6 + 9x - 18

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3 years ago