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3 years ago

What is the y intercept of the quadratic equation f(x)=(x-8)(x+3)?

Mathematics

1 answer:

ivann1987 [24]3 years ago

7 0

The Y-intercept is when the line touches or crosses the y-axis and so the answer is (0,-24)
hope this helps!

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Which expression would be easy to simplify if you used the associative property to change the grouping

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3 years ago

Which number represents 4%?

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Simplify the expression<br> 9r+7+3(8p+7r)+15

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3 years ago

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algol [13]

Answer:

Step-by-step explanation:

We have the two functions:

$f(x)=\sqrt{x}+12\text{ and } g(x)=2\sqrt{x}$

And we want to find (f-g)(144).

This is the same thing to f(144)-g(144).

So, let’s determine the value of f(144) and g(144) first:

$\begin{aligned} f(144)&=\sqrt{144}+12 \\ &=12+12 \\ &=24\end{aligned}$

And:

$\begin{aligned} g(144)&=2\sqrt{144} \\ &=2(12) \\ &=24 \end{aligned}$

Hence:

$\begin{aligned} (f-g)(144) &= f(144)-g(144) \\ &=24-24 \\ &=0 \end{aligned}$

Our final answer is 0.

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