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
Anna [14]
10 months ago
15

What is an equation of the line that passes through the points (-4,-7) and (2,8)

Mathematics
2 answers:
Alenkasestr [34]10 months ago
7 0

Answer:

y=5/2x+3 or y=\frac{5}{2}x+3

Step-by-step explanation:

<u>Step 1:</u>

Compute the slope (-4, -7), (2,8):

m=5/2

<u>Step 2:</u>

Compute the y intercept:

b=3

<u>Step 3:</u>

Add the results together:

y=5/2x+3 or y=\frac{5}{2}x+3

Hence, the final answer is y=5/2x+3 or y=\frac{5}{2}x+3

ad-work [718]10 months ago
7 0

<em>Greetings from Brasil...</em>

One way to solve this question is through determinant

| X     Y     1 |

| X₁    Y₁    1 |  = 0

| X₂    Y₂   1 |

We have:

(X₁; Y₁) = (-4; -7)

(X₂; Y₂) = (2; 8)

then

| X   Y   1 |

| -4  -7   1 |  = 0

| 2   8    1 |

<h3>- 15X + 6Y - 18 = 0</h3>

________________________________

<em>see something similar in</em>

<em>brainly.com/question/28654988</em>

You might be interested in
Inverse Function In Exercise,analytically show that the functions are inverse functions.Then use the graphing utility to show th
Anna [14]

Step-by-step explanation:

We need to show whether

f^{-1}(x) = g(x)

or

g^{-1}(x) = f(x)

so we'll do either one of them,

we'll convert f(x) to f^-1(x) and lets see if it looks like g(x).

f(x) = e^x - 1

we can also write it as:

y = e^x - 1

now all we have to do is to make x the subject of the equation.

y+1 = e^x

\ln{(y+1)} = x

x=\ln{(y+1)}

now we'll interchange the variables

y=\ln{(x+1)}

this is the inverse of f(x)

f^{-1}(x)=\ln{(x+1)}

and it does equal to g(x)

g(x)=\ln{(x+1)}

Hence, both functions are inverse of each other!

This can be shown graphically too:

we can see that both functions are reflections of each other about the line y=x.

4 0
3 years ago
Determine whether the ffunction X/(x^2-1) is odd even or neither
djyliett [7]

equation is:

f(x) = \frac{x}{ {x}^{2} - 1 }

so if its even f(-x) should be equal to f(x)

that means

f( - x) =   \frac{ - x}{  {( - x)}^{2}  - 1}  \\  \\ f( - x) =     - \frac{ x}{ {x}^{2}  - 1}

so f(x) is not equal to f(-x) so its not even

If its odd than f(-x) should be equal to -f(x)

- f(x) =  - ( \frac{ x}{ { x}^{2} - 1 } ) \\  - f(x) =    - \frac{ x}{ {x}^{2} - 1 }

so as we can see f(-x)= - f(x)

so the function is odd

Ans:function is odd and not even

3 0
3 years ago
At the market, 8 apples cost $4, 4. How much do 9 apples cost?
ella [17]

Answer: i need more information 8 apples cost $4, 4???????


Step-by-step explanation:


7 0
3 years ago
Solve.
adoni [48]
6+(-2)+2•(-8)•42=6-2+(-16)•42=4+(-672)=4-672=-668
5 0
3 years ago
What is the simplest radical form of the expression?
Anna35 [415]

Answer:

x^2y^2 3y^2

Step-by-step explanation:

its a or the first choice

6 0
3 years ago
Other questions:
  • HELP PLS I REALLY NEED HELP MAN
    5·2 answers
  • As a unit rate , 137.5miles in 2.5hours would be
    13·2 answers
  • The following system has a solution: x=10, y=-3, z=14
    13·1 answer
  • What is y+6=5x please show steps to solve
    8·1 answer
  • 30 points! Please help!!<br><br> What is the input value for which f(x)=3?
    6·2 answers
  • New car owners were asked to evaluate their experiences in buying a new car during the past 12 months. In the survey, the owners
    14·2 answers
  • Find the distance between the points (3,−5) and , (−7,−5).
    8·1 answer
  • Please help real quick on this algebra
    11·2 answers
  • Which number is not in the solution set of x-6&gt;10?
    11·2 answers
  • A triangle has two sides that have lengths of 37 cm and 19 cm. Which could represent the possible length of the third side?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!