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
Aloiza [94]
3 years ago
13

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

Mathematics
2 answers:
Arturiano [62]3 years ago
7 0
F(x) = -(x + 8)² - 1 

<span>The function (not its graph) decreases on interval [-8, ∞). It is a quadratic function in vertex form. That form makes it easy to pick out the one extremum, where x equals -8. The leading coefficient is negative, so the extremum must be a maximum. The function decreases as x increases from there. </span>

<span>Notice that I include the value -8 in the interval. The function does not have instantaneous decrease at that value, but that is not what it means for a function to be decreasing over an interval. </span>

<span>Let a and b be any two values on [-8, ∞), such that a < b. </span>

<span>-8 ≤ a < b </span>

<span>Then f(a) > f(b). Therefore, function f is decreasing on interval [-8, ∞).</span>
IRISSAK [1]3 years ago
3 0

Answer:

A.

Step-by-step explanation:

You might be interested in
Write down the next decimal number. 0,79; 0,76; 0,73; 0,7; ___​
ycow [4]

Answer:

0.69

Step-by-step explanation:

Hope this helps..

3 0
2 years ago
The difference between an open circle and a closed circle on a graph of an inequality.
Ilia_Sergeevich [38]

A closed circle means that value is included, and an open circle means that value is excluded.

Example:

x > 2 ---- Graphed with an open circle, everything greater than but not including 2

x ≤ 3 ------ Graphed with a closed circle, everything less than and including 3

3 0
3 years ago
Find the equation of a circle whose endpoints of the diameter are (15, - 3) and (7,3). The equation of the circle is (Simplify y
Nana76 [90]

Answer:

(x - 11)² + y² = 25

Step-by-step explanation:

First find the center

O = ( (15 +7 / 2), (-3 + 3)/2 )

O = (11, 0)

Then find the radius squared

use the distance formula from the center to either end point of the diameter

r² = (15 - 11)² + (-3 - 0)²

r² = 16 + 9

r² = 25

Formula for circle

(x - h)² + (y - k)² = r²

(h, k) is the center = (11, 0)

The equation is

(x - 11)² + y² = 25

8 0
3 years ago
No link please……. Enter the value of b when the expression 30.4x + b is equivalent to 3.4 (6x-3.1)
TiliK225 [7]

Answer:

61

Step-by-step explanation

sped

4 0
2 years ago
Read 2 more answers
Adrian built a structure out of 10 congruent cubes. If each cube has a volume of 8 cu. centimeters, what is the total
kobusy [5.1K]

Answer:

Option (b).

Step-by-step explanation:

It is given that Adrian built a structure out of 10 congruent cubes.  

Volume of each cube = 8 cubic centimetres.

We need to find the total volume of the structure.

Total volume = No. of cubes × Volume of each cube

V=10\times 8

V=80

Therefore, the total volume of the structure is 80 cubic centimetres.

Hence, option (b) is correct.

4 0
3 years ago
Other questions:
  • 4) About how many pennies altogether were collected by students at central and highlands? (Please help also sorry for my messy h
    5·1 answer
  • Write the y-intercept of x=5y-10
    9·1 answer
  • Solve the proportion for “m”. 4/12=m/39
    10·2 answers
  • What is 14/28 in simplest form
    5·2 answers
  • Kailey is thinking of two numbers. The larger number is equal to twice the smaller increased by 12. Two times the smaller number
    8·1 answer
  • Given the table below, determine the initial value/y intercept. PIC IS ABOVE! ANSWER!
    13·2 answers
  • On someone plz help it is timed i will give Brainliest if correct
    14·1 answer
  • eight friends share 64 tickets to the carnival. each friend has the same number of tickets. how many tickets does each friend ha
    8·1 answer
  • I need the answers ASAP
    15·1 answer
  • 6 wholes 1/5 - 5 wholes 1/4 + 3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!