3 years ago

Help plahhhhhhhhhhhh

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

$- 1 < x < 7 \: is \: the \: answer$

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2 years ago

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torisob [31]

Answer:

The answer is D.

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As said in the problem, we are labeling the total minutes used <em>x </em>and the total monthly income as <em>y</em>. This means that in the graph we will be making the y-axis should represent the total monthly charges, and the x-axis should represent the total minutes.

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3 years ago

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3 years ago

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MA_775_DIABLO [31]

Answer:

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Step-by-step explanation:

We see that the two terms share an x, so we can pull that out:

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Now notice that we have a difference of squares ( $x^2-1$ ). Given a difference of squares, $a^2-b^2$ , this can always be factored into $(a+b)(a-b)$ . We can use this in this case: $x^2-1=(x+1)(x-1)$ .