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Solnce55 [7]
3 years ago
14

Which function represents a parabola that opens downward and intersects the x-axis at (3,0) and (-4,0)?

Mathematics
2 answers:
Sindrei [870]3 years ago
6 0
It would be C for personal reasons only
Gennadij [26K]3 years ago
4 0

Answer:

Step-by-step explanation:

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For the year 2010, 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal
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Answer:a

Step-by-step explanation:

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3 years ago
Evaluate the expression when x =6 y=2 3x +4/y
andreyandreev [35.5K]
The answer to your question is 38
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What is the value of the expression: 144 100​
grandymaker [24]

Answer:

14,400

Step-by-step explanation:

I'm assuming this is multiplication so it would be 14,400

4 0
3 years ago
Answer the questions below about the quadratic function.f(x) = -2x² - 4x
Juli2301 [7.4K]

We are given the function below;

f(x)=-2x^2-4x

PART A

We then proceed to find if the function has a minimum or maximum value. To find if the function has a minimum or maximum value. If the x^2 coefficient is positive, the function has a minimum. If it is negative, the function has a maximum.

ANSWER: From the above, we can see that x^2 is negative, hence the function has a maximum

PART B and C

To find the minimum or maximum value, we would plot the graph of the f(x). The graph can be seen below.

From the graph, the black point helps answer part A and part B.

ANSWER: The function's maximum value is f(x)=2.

This is the point where the slope of the graph is equal to zero

ANSWER: The maximum value then occurs at x= -1

We can also solve this by differentiating the function.

\begin{gathered} f(x)=-2x^2-4x \\ f^{\prime}(x)=-4x-4 \\ At\xi maxmum\text{ }f^{\prime}(x)=0 \\ -4x-4=0 \\ -4x=4 \\ x=-\frac{4}{4} \\ x=-1 \\ \therefore\text{The max}imum\text{ value occurs at x=-1} \\ \text{Inserting the value of x into the function, we have} \\ f(x)=-2(-1)^2-4(-1) \\ f(x)=-2+4 \\ f(x)=2 \\ \therefore\text{The function max}imum\text{ value is 2} \end{gathered}

5 0
1 year ago
I need help I don’t understand number lines
Agata [3.3K]

Answer:

Well according to the number line shown, it is in the negative area and if you see this it is near -6.5, all you need to do is count the spots until it hits the circle which is -6.8

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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