1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andru [333]
3 years ago
10

Over what interval is the graph of f(x) = –(x + 8)2 – 1 decreasiang help

Mathematics
1 answer:
Degger [83]3 years ago
5 0
Please use " ^ " to denote exponentiation:  

<span>f(x) = –(x + 8)^2 – 1 
Find the first derivative:  f '(x) = -2(x+8)(1)
Set this = to 0:  -2(x+8) = 0
solve for x:  x = -8
Divide the number line into subintervals based upon x=-8:

(-inf, -8) and (-8, inf)

Choose a test value for x from each interval, e. g., -10 from the first interval and 20 from the second.

Subst. this test value into the derivative, shown above.

If the result is + the function is incr on that interval; if - the fn. is decr.

Questions welcome!</span>
You might be interested in
6 divided by 2/3 = tell me thee answer in fraction form
Maksim231197 [3]

Answer:

There wouldn't be a fraction form because its a whole number which is 9

8 0
3 years ago
What is this ? 8(m+3)-20+m
KonstantinChe [14]
8m+24-20+m= 9m+4. "9m+4" is the answer
5 0
3 years ago
Read 2 more answers
How do i solve divide 5/8 by 50%
Ede4ka [16]
50% is \frac{50}{100}
We have two ways to do this, pick your favor:
either by fractions:
\frac{5}{8} ÷ \frac{1}{2}
(\frac{50}{100} =  \frac{1}{2}
Multiply by the reciprocal of \frac{1}{2} which is 2(flip it)

\frac{5}{8} × 2 = \frac{5}{4} = 1.25

Or change them to decimals:
\frac{5}{8} = 0.625
\frac{50}{100} = 0.5

0.625 ÷ 0.5

0.5 I 0.625
multiply by 10 to make it easier to divide(it still gives us the same answer)
0.5 × 10 = 5
0.625 × 10 = 6.25
     1.25
5 I 6.25
    -5
     12
    -10
       25
      -25
         0

0.625 ÷ 0.5 = 1.25

7 0
3 years ago
Which statement explains the type of function that is represented by the equation<br> y=x2 +9?
DENIUS [597]
The answer is 28392729
6 0
2 years ago
50 points!!! please hurry
Margarita [4]

Answer:

It comes down to what the equals sign means. It means,  that the two things mentioned on either side of the equation are the same thing. If you do something to the left side, you have presumably changed it.

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

8 0
2 years ago
Read 2 more answers
Other questions:
  • 32 + (7 − 2) ⋅ 4 − 6 over 3.
    15·2 answers
  • The width,w, of a rectangular garden is X -2 the area of the garden is X^3-2X-4 what is an expression for the length of the gard
    7·2 answers
  • errence buys a new car for $20,000. The value of the car depreciates by 15% each year. If f(x) represents the value of the car a
    11·1 answer
  • The product of 7/16, 4/3, and 1/2 is A. 2 13/48. B. 21/32. C. 7/24. D. 7/12.
    10·2 answers
  • EMERGENCY PLEASE HELP!!
    14·2 answers
  • A store gave away 1932 calendars in seven days they gave away the same number of calories each day how many calendars in the sto
    8·1 answer
  • 4. Kiran's uncle is 54 years old. He is 8 years older than three times Kiran's age. Find Kiran's age,​
    14·1 answer
  • Answer correctly plzzzzzzzzzzzzzzzzzzzzzzz
    14·1 answer
  • 3. Simplify 3 +2× 4+6/2-5 -1<br><br>4<br><br>2<br><br>25<br><br>3​
    8·1 answer
  • Angle sum theorem ??
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!