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
scoundrel [369]
2 years ago
9

Please help me with this. thank you!

Mathematics
2 answers:
Firlakuza [10]2 years ago
6 0

Answer:  

1. y = mx + b

Step-by-step explanation:

y = mx + b

2) to find the y intercept you need to see what cross | ( 8,5)

3) 5 = m(8) = b

4) your slope is negative form the why it pointing

5) in this case your slope is 1/3

6) so now you can do your first step now that you have your (y,x) and slope (your solving for (b)

7)

5 = 1/3 (8) + b

5 = 2.6 + b

5 = 2.6

-2.6

2.4 = b

notsponge [240]2 years ago
4 0

Answer:

Step-by-step explanation:

Let's use the two noted points for the calculation of slope:

Point 1:  (2,8) and

Point 2: (6,4)

These become our (x1,y1) and (x2,y2).

------------------

We are trying to find a straight line equation of the form y = mx+b, where m is the slope and b is the y-intercept (the value of y when x = 0).

The slope:

m = (y2 - y1)/(x2 - x1)

m = (4 - 8)/(6 - 2)

m = -4/4

m = -1

This gives us y = -1x + b

-----

Find b by entering either of the two given points.  I'll use (6,4):

y = -1x + b  

4 = -1(6) + b

b = 10

The equation is now y = -x + 10

--------

Find the value of y when x = 9:

y = -x + 10

y(9) = -(9) + 10

y(9) = 1

===========

This graph has a negative trend.  Y decreases as x increases.  It crosses the y axis at 10 when x is 0, and is only positive when x < 10.  See the attached graph.  Note that the graph of this line does not intersect many of the points on the original graph.  They fall to either side, and are not consistent with a single line equation.  The general, negative trend of slope - 1 trend holds true, however, so one might conclude errors may have been made in collecting the data.  That is clearly due to your lab partner.  [Well, you might try a better explanation].  A craftier person might calculate a standard deviation of error for the line, but that's next semester.  It is worthwhile noting that a selection of two points other than the ones chosen above for calculating slope, would result in different equations.  We selected the two points used here ((2,8) and (6,4)) because they are clearly noted on the chart.

You might be interested in
HELP FAST<br><br> find the value of x.
sergeinik [125]

Answer:

81=6x+3(vertically opposite angle are equal)

81-3=6x

78=6x

x=13°

hope it helps.

6 0
2 years ago
What is the equation of the line that passes through the point (-2, -1) and has a<br> slope of ?
enot [183]

Answer:

10

Step-by-step explanation:

6 0
3 years ago
For the following pair of lines, identify the system by type.
Alexus [3.1K]

Equivalent lines for sure

7 0
3 years ago
13 POINTS! EVALUATE AND SHOW ALL WORK
padilas [110]

Answer:

  • 0

Step-by-step explanation:

<u>Solving in steps</u>

  • 3| 4.5 - 2| - 5 |-1.5 -(- 3)| =
  • 3 |2.5| -5 |-1.5 + 3| =
  • 3*2.5 - 5|1.5| =
  • 7.5 - 5*1.5 =
  • 7.5 - 7.5=
  • 0
3 0
3 years ago
Help me again pls and who ever gets it correct gets 20 points plus brainliest ​
Ostrovityanka [42]

Answer:just drag across

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • If lenny choose a time of day at random to turn on the radio to his favorite station ,l what is the probability that the news wi
    12·1 answer
  • Find two numbers whose gcf is 90
    15·2 answers
  • Each Social Security number (SSN) in the USA consists of 9 digits in the format XXX-XX-XXXX. Due
    13·2 answers
  • Helpp !! i am terrible at mathematics
    9·1 answer
  • What is the nth term of 4 9 16 25 36?
    6·1 answer
  • Maisie has three times as many CDs as Ken. Ken has twice as many CDs as Jo. Jo has more than 10 CDs. What is the least number of
    6·1 answer
  • A river is 212 mile long. What is the length of the river on a map, if the scale is 1 inch : 50 miles?
    15·1 answer
  • If −15 + 3x = −7 + 5x, then 6x =_____?
    13·2 answers
  • NEED HELP ASAP, WILL GIVE BRAINLIEST
    5·1 answer
  • A) 4+10+8=<br> B) 5-9+1=<br> C) -8-2+3=<br> D) -15+8-7=<br> E) 24+6-12=<br> F) 18-3-21=
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!