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
Write the equation y= -1/3x -5 in standard form.
melomori [17]

Answer:

Standard form is another way to write slope-intercept form (as opposed to y=mx+b). It is written as Ax+By=C. You can also change slope-intercept form to standard form like this: Y=-3/2x+3. Next, you isolate the y-intercept(in this case it is 3) like this: Add 3/2x to each side of the equation to get this: 3/2x+y=3.

Step-by-step explanation:

Standard form is another way to write slope-intercept form (as opposed to y=mx+b). It is written as Ax+By=C. You can also change slope-intercept form to standard form like this: Y=-3/2x+3. Next, you isolate the y-intercept(in this case it is 3) like this: Add 3/2x to each side of the equation to get this: 3/2x+y=3.

5 0
3 years ago
I will upvote and give brainliest answer
grigory [225]

Answer:

The answer is 67 degrees.

Step-by-step explanation:

The angle x is supplementary with 23 degrees because that angle is an alternate interior. Recall that is within a right angles as well so

90 - 23 = 67

7 0
3 years ago
Read 2 more answers
Write an expression with the value of 12.It should contain four numbers and two different operations
Nady [450]
8-2+(12÷2)

Hope this helps :)
5 0
3 years ago
Read 2 more answers
What is shift y = 5x 3 units up.
alukav5142 [94]
Y=5x+3. because your y axis is moved
8 0
3 years ago
What is 1574/15 redused
r-ruslan [8.4K]

Answer:

104 14/15

Step-by-step explanation:

15 goes into 1574 104 times and you have 14 remaining so you have 104 with a remaining fraction of 14/15.

3 0
3 years ago
Other questions:
  • Two negative integers are 5 units apart on the number line, and their product is 126. What is the sum of the two integers?
    10·2 answers
  • What mixed number is 3/8 of 100
    10·1 answer
  • Select the correct answer. Joe wants to enlarge the rectangular pumpkin patch located on his farm. The pumpkin patch is currentl
    13·1 answer
  • A random sample of monarch butterflies and a random sample of swallowtail butterflies were selected, and the difference in the a
    15·2 answers
  • A pizza with radius 7 in. is cut into 12 equal-sized pieces. What is the area of each piece? Round to the nearest hundredth of a
    9·1 answer
  • Solve 2(x + 3) = x-4
    11·1 answer
  • If sinA÷2 =4÷2 find the value of cosA (not by pythagoras theorem)​
    12·1 answer
  • Please help asap! And no links or weird answers, please :(
    8·1 answer
  • Loan a banko Q Mr shatish took of $ 12000 from The interest of for annum gives 5% per 3 years 3​
    5·1 answer
  • 5X-20 =18O what is x?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!