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2 years ago

7

Which statement is true about the end behavior of the graphed function?

1 answer:

maw [93]2 years ago

8 0

Answer:

Which statement is true about the end behavior of the graphed function? As the x-values go to positive infinity, the function's values go to negative infinity.

Step-by-step explanation:

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Which of the following are solutions?

zloy xaker [14]

This is a quadratic equation. There's a shortcut (two shortcuts really) called the Shakespeare Quadratic Formula (2b or -2b) applicable when the middle term is even:

$x^2 - 2bx + c \textrm{ has zeros } x= b\pm \sqrt{b^2-c}$

$ax^2 - 2bx + c \textrm{ has zeros } x= \dfrac 1 a( \left b\pm \sqrt{b^2-ac} \right)$

OK, our problem is

$9x^2 - 6x -7 = 0$

$x = \frac 1 9 (3 \pm \sqrt{9-(9)(-7)}) = \frac 1 9(3 \pm \sqrt{72})= \frac 1 9(3 \pm 3 \sqrt{8}) = \frac 1 3(1 \pm \sqrt 8)$

Typically we'd write $\sqrt 8 = 2 \sqrt 2$ but the answers here don't so we won't either.

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3 years ago

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stealth61 [152]

Answer:

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Step-by-step explanation:

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Anna71 [15]

Step-by-step explanation:

a)70percent

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3 years ago

paden payes $2.10 for 5 1/2 pounds of bananas. Alyssa pays $3.25 for 6 1/2 of bananas. Which is the better buy

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Yuliya22 [10]

Answer:

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Step-by-step explanation:

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