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
mihalych1998 [28]
3 years ago
8

Write the slope intercept form of the equation of the line through the given points (-1,-5) (0,3) make sure your answer is in y=

Mx+b form
Mathematics
2 answers:
Rama09 [41]3 years ago
7 0

Answer:

y=8x+3

Step-by-step explanation:

Find the slope of the line between  ( − 1 , − 5 )  and  ( 0 , 3 )  using  m = y 2 − y 1/ 2 − x 1 , which is the change of  y  over the change of  x . Which gets you the slope of 8.

Use the slope  8  and a given point  ( − 1 , − 5 )  to substitute for  x 1  and  y 1  in the point-slope form  y − y 1 = m ( x − x 1 ) , which is derived from the slope equation  m = y 2 y 1 /2 − x 1 .

y − ( − 5 ) = ( 8 ) ( x − ( − 1 ))  

Simplify the equation and keep it in point-slope form. y + 5 = 8 ⋅ ( x + 1 ) Solve for  y .

y = 8 x + 3

jarptica [38.1K]3 years ago
4 0

y=8x+3

Find the slope of the line between  ( − 1 , − 5 )  and  ( 0 , 3 )  using  m = y 2 − y 1/ 2 − x 1 , which is the change of  y  over the change of  x . Which gets you the slope of 8.

Use the slope  8  and a given point  ( − 1 , − 5 )  to substitute for  x 1  and  y 1  in the point-slope form  y − y 1 = m ( x − x 1 ) , which is derived from the slope equation  m = y 2 y 1 /2 − x 1 .

y − ( − 5 ) = ( 8 ) ( x − ( − 1 ))  

Simplify the equation and keep it in point-slope form. y + 5 = 8 ⋅ ( x + 1 ) Solve for  y .

plus i just did this

y = 8 x + 3

Read more on Brainly.com - brainly.com/question/15921212#readmore

You might be interested in
Which angle corresponds to < 8?​
Yuri [45]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
Which expression has the same value as the one below?
marta [7]

Answer:

answer is B 38-18

Step-by-step explanation:

38 + (-18)

38-18

5 0
3 years ago
Read 2 more answers
25 is what percent less than 35
mars1129 [50]
Difference between 25 and 35 = 35 -25
                                                 = 10
Then
percentage by which 25 is less than 35 =(10/35) * 100
                                                                 = (2/7) * 100
                                                                 = 200/7
                                                                 = 28.57 percent
So 25 is 28.57% less than 35.This is the only clear way of solving these kind of problems. I hope you have understood the method used to solve this problem. Hopefully you can do such type of problems without needing any help.
8 0
3 years ago
Read 2 more answers
Some types of algae have the potential to cause damage to river ecosystems. Suppose the accompanying data on algae colony densit
Phantasy [73]

Answer:

y=-2.95836 x +234.56159

Step-by-step explanation:

We assume that th data is this one:

x: 50, 55, 50, 79, 44, 37, 70, 45, 49

y: 152, 48, 22, 35, 43, 171, 13, 185, 25

a) Compute the equation of the least-squares regression line. (Round your numerical values to five decimal places.)For this case we need to calculate the slope with the following formula:

m=\frac{S_{xy}}{S_{xx}}

Where:

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}

So we can find the sums like this:

\sum_{i=1}^n x_i =50+ 55+ 50+ 79+ 44+ 37+ 70+ 45+ 49=479

\sum_{i=1}^n y_i =152+ 48+ 22+ 35+ 43+ 171+ 13+ 185+ 25=694

\sum_{i=1}^n x^2_i =50^2 + 55^2 + 50^2 + 79^2 + 44^2 + 37^2 + 70^2 + 45^2 + 49^2=26897

\sum_{i=1}^n y^2_i =152^2 + 48^2 + 22^2 + 35^2 + 43^2 + 171^2 + 13^2 + 185^2 + 25^2=93226

\sum_{i=1}^n x_i y_i =50*152+ 55*48+ 50*22+ 79*35+ 44*43+ 37*171+ 70*13+ 45*185+ 49*25=32784

With these we can find the sums:

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=26897-\frac{479^2}{9}=1403.556

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}=32784-\frac{479*694}{9}=-4152.22

And the slope would be:

m=-\frac{-4152.222}{1403.556}=-2.95836

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{479}{9}=53.222

\bar y= \frac{\sum y_i}{n}=\frac{694}{9}=77.111

And we can find the intercept using this:

b=\bar y -m \bar x=77.1111111-(-2.95836*53.22222222)=234.56159

So the line would be given by:

y=-2.95836 x +234.56159

7 0
2 years ago
A winter resort took a poll of its 400 visitors to see which winter activities people enjoyed. The results were as follows: 188
VARVARA [1.3K]
Exactly one activity:  246
None of the activities :  1
At least one activity:  74
Snowboarding and Ice skating but not skiing:  5
Snowboarding or ice skating but not skiing:  132.
Only skiing :  119.
The diagram is in the attachment. 
Download docx
6 0
2 years ago
Other questions:
  • Probability question
    6·1 answer
  • An investor bought 600 shares of stock, some at $⁢4.50 per share and some at $⁢1.00 per share. If the total cost was $1650.00 ,
    5·1 answer
  • I have to put spaces so delete the spaces ok
    15·1 answer
  • Please help :) Is the relationship shown by the data linear? If so model the data with an equation.
    9·1 answer
  • A communications satellite transmits a radio wave at a frequency of 5 • 109 Hz. What is the signal’s wavelength? Assume the wave
    8·1 answer
  • Given the point (4,5) and the slope is 6, find y when x=24
    15·2 answers
  • Rosa has a garden divided into sections. She has 125 daisy plants. If she plants in each section of daisies, will she have any l
    10·2 answers
  • PLEASE HELP!!!!!!!!!!! Yelena has a toy in the shape of a cube. Each side of the cube measures 7 cm. What is the volume of the t
    15·2 answers
  • Solve 3x2 + 5 = -2x using the Quadratic Formula.
    13·1 answer
  • Prem has $45000 to invest for 1 year. The bank tells him the interest rate is 6%. Calculate how much the investment is worth at
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!