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sertanlavr [38]
3 years ago
8

Use the graph to state the solution for the system. (In other words, what is the solution for the system?)

Mathematics
1 answer:
timurjin [86]3 years ago
3 0
(2,1) is the solution because its where they both intersect..
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Show work please and correct
77julia77 [94]

Answer:

-  \frac{1}{2}

its down 1 over 2 each time

7 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
A department store is having a “half price” sale. Which is equivalent to “half price”?
Delvig [45]

Answer:

50% off

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Back to my question. I have this problem that I cant solve.
vesna_86 [32]

Answer:

Step-by-step explanation:

-21-9k=-8(6k+3)

-21-9k= 48k+24

+9k          +9k

-21=57k+24

-24         -24

-45=57k

divide 57 by -45

k= -1.2

idk if that helps, sorry

6 0
3 years ago
Read 2 more answers
Peyton has collected 120 aluminum cans for recycling. If 20 cans will fit in each blue plastic bag, how many bags will she need
gogolik [260]

Hi Renee!

--------------------------------------------

We Know:

120 aluminum cans.

20 cans fit in each blue bag.

--------------------------------------------

Solution:

120 / 20 = 6

--------------------------------------------

Answer:

She will need 6 bags to carry all the aluminum cans.

--------------------------------------------

Hope This Helps :)

6 0
3 years ago
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