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
Kamila [148]
3 years ago
7

What is the average rate of change y - 3 = -12 (x + 4)​​

Mathematics
2 answers:
mote1985 [20]3 years ago
7 0

Answer:

-\frac{3}{10}

Step-by-step explanation:

The average rate of change of a function f ( x )  over the interval  [ a , b ]  is

=\frac{f(b)-f(a)}{b-a}

f(x)=\frac{3}{x-2}

and [a,b]=[4,7]

f(b)=f(7)=\frac{3}{7-2}=\frac{3}{5}

f(b)=f(4)=\frac{3}{4-2}=\frac{3}{2}

The rate of change is

=\frac{f(b)-f(a)}{b-a}

=\frac{\frac{3}{3} -\frac{3}{2} }{7-4}

=-\frac{9}{10} *\frac{1}{3} =-\frac{3}{10}

vagabundo [1.1K]3 years ago
4 0

Answer:

- 12x

Step-by-step explanation:

y - 3 =  - 12(x + 4) \\ y - 3 =  - 12x - 48 \\ y =  - 12x - 45

Thr answer is the slope.

You might be interested in
Write a numerical or variable expression for the quantity: the number of days in w weeks.
JulsSmile [24]

Answer:

7w is the answer

7 ×number of weeks

5 0
3 years ago
A STUDENT FINISHES THEIR FISR HALF OF AN EXAM IN 2/3 THE TIME IT TAKES HIM TO FINISH THE SECOND HALF. IF THE ENTIRE EXAM TAKES H
shepuryov [24]

Answer: First half was 24 minutes

Step-by-step explanation:

Let the time taken to finish the second half be y.

Since the student used 2/3 of the second half time to finish the first half, first half = 2/3 × y = 2y/3

The entire exam is an hour which equals 60 minutes

First half + Second half = 60minutes

Note that first half is denoted as 2y/3 and second half is denoted by y.

2y/3 + y = 60

5y/3 = 60

Cross multiply

5y = 60 × 3

5y = 180

y = 180/5

y = 36

Second half took 36 minutes

Since first half is 2y/3, it will be:

(2×36) / 3

= 72/3

= 24minutes

First half took 24 minutes.

8 0
3 years ago
Which is the domain of f(x) = 4^x<br> will give brainlist!
Ksenya-84 [330]

Answer:

all real numbers

Step-by-step explanation:

The domain is the input values

All values for x are valid as inputs to the function

4 0
3 years ago
Sketch and shade the region in the xy-plane defined by the equation or inequalities.
Shtirlitz [24]

Answer:

attached below is the solution

Step-by-step explanation:

|x| < 7

= -7 < x < 7

| y | < 3

= -3< y < 3

attached below is the shaded region in the xy-plane

7 0
3 years ago
4x-1=3(x-1) Please help!
Sveta_85 [38]

Answer:

x=-2

Step-by-step explanation:

4x-1=3x-3

x=-2

5 0
3 years ago
Read 2 more answers
Other questions:
  • A maximum number of 25 translating inequalities
    5·1 answer
  • Can you help me explain the process because I don't understand. (With the answer)
    12·1 answer
  • Express the improper fraction as a mixed number in simplest form 39/8
    14·2 answers
  • How would i solve this problem 2x-5=4x-1?
    15·2 answers
  • The perimeter of this triangle
    12·1 answer
  • Please help me get an answer
    12·2 answers
  • Dominic invited 50 friends online to play fortnite. Seven players decided to play after 8pm, nine before and the rest the same t
    9·2 answers
  • Convert 0.00049 to scientific notation
    10·2 answers
  • Joe drove 200 km in 4 hours.At what rate did he drive?<br><br><br>​
    10·1 answer
  • JEN PURCHASED THE ITEM SHOWN IN THE TABLE IN THE CITY IN THE SALES TAX RATE IS 7.15 IN ANOTHER CITY THE SALES TAX RATE IS 6.35 H
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!