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
VikaD [51]
3 years ago
13

PLEASE HELP FAST!!! Estimate the line of best fit using two points on the line.

Mathematics
2 answers:
yawa3891 [41]3 years ago
4 0

Answer:

D

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}=xy_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, 8) and (x₂, y₂ ) = (8, 5)

m = \frac{5-8}{8-2} = \frac{-3}{6} = - \frac{1}{2}

The line crosses the y- axis at (0, 9) ⇒ c = 9

y = - \frac{1}{2} x + 9 → D

FrozenT [24]3 years ago
3 0

Answer:

D) y= -1/2x+9

Step-by-step explanation:

if u substitute y with 8 u will get 2

if u substitute y with 5 u will get 8

You might be interested in
An amusement park charges a $15 entrance free plus $3.25 for each ride. Part A: Write an equation that represents the situation.
IceJOKER [234]

Answer:

Look below

Step-by-step explanation:

Part A: Equation would be in the y=mx+b format. m, or the slope, would be the cost that varies depending on the number of things that happen so m=3.25. b would be the fix cost so it is 15 so the equation ends up being y=$3.25x + $15.

Part B: Initial value is 15 since it is the fix cost, and 3.25 is the rate of change since it added as the number of rides increase.

Part 3: To solve this you substitute 7 into x so y=$3.25(7) + $15 = $37.75

I hope this explains it well.

7 0
3 years ago
In september, seattle's daily high temperature has a mean of 70 °f and a standard deviation of 7 °f. What are the mean, standard
Anna [14]
Mean= is the summation of the maximum temperatures ÷ the numbers of times the temperatures where recorded

standard deviation= is a number used to tell how measurements for a group are spread out from the average (mean), or expected value.

A low standard deviation means that most of the numbers are very close to the average.

A high standard deviation means that the numbers are spread out.

Variance= is a way to measure how far a set of numbers is spread out.

A variance of zero indicates that all of the data values are identical. All non-zero variances are positive.

A small variance indicates that the data points tend to be very close to the mean, and to each other.

A high variance indicates that the data points are very spread out from the mean, and from one another.
8 0
4 years ago
Which of the following reasons could be used to conclude that the lines are parallel based on the given information?
rewona [7]

We have been given three statements. From those statements, we have to pick the statement that can conclude that that two lines are parallel.


Statement 1:

If right angles are formed, then lines are parallel.

This is not valid because if the angle formed is right angle then lines forming right angle will be perpendicular.


Statement 2:

If two lines are perpendicular to another line, then they are parallel.

This is valid because the line on which other two lines are perpendicular will work as transversal and the alternet interior angles will be equal. Hence the two perpendicular lines on given line will be parallel to each other.


Statement 3:

If alternate interior angles are equal, then lines are parallel.

This is valid as explained above.


Hence final answer are statement 2 and statement 3 both.


7 0
3 years ago
Read 2 more answers
What does 3 over 4 times 2 equal?
Hoochie [10]

Answer: 1.5

Da maths: Bruh ask google

6 0
3 years ago
Read 2 more answers
Please help me with this D:
I am Lyosha [343]
Yes, because 120 - 36 = (120\times 36) - 4236 = 84

Hope that helped :D
8 0
3 years ago
Other questions:
  • It cost 1.25 for a quarter pound of birdseed. What is the slope and what does it represent?
    6·1 answer
  • What will always exist in any economic system?
    15·2 answers
  • Sam blinks every 15 seconds and Martha blinks every 10 seconds. They blink together at midnight. How many seconds will pass befo
    10·1 answer
  • You are 5 feet tall and cast a 10 foot shadow a flagpole nearby cast a shadow that is 28 feet which equation can you use to solv
    12·1 answer
  • Let u = PQ be the directed line segment from P(0,0) to Q(9,12) and let c be a scalar such that c < 0. which statement best de
    8·2 answers
  • Mr.Chang has a bunch of ballons.4/8 of the ballons are red.2/8 of the ballons are blue.What fraction of the ballons are neather
    10·1 answer
  • The level of dissolved oxygen (DO) in a stream or river is an important indicator of the water's ability to support aquatic life
    12·1 answer
  • The solution of 4(x + 1) = 4(2 – x)
    11·2 answers
  • What is the y-intercept of the graph of the line whose equation is y=3/4x+1
    13·1 answer
  • A restaurant is serving a special lunch combo meal that includes a drink, a main dish, and a dessert. Customers can choose from
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!