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
Anarel [89]
3 years ago
5

Can anyone help me? My teacher just recently taught me this today, be he never explained much. The question is in the photo

Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0

You've got five different problems in this photo ... four on top and the word problem on the bottom ... and they're all exactly the same thing:  Taking two points and finding the slope of the line that goes through them.

In every case, the procedure is the same.
If the two points are  (x₁ , y₁)  and  (x₂ , y₂) , then
the slope of the line that goes through them is

                          Slope  =  (y₂ - y₁) / (x₂ - x₁) .

This is important, and you should memorize it.

#1).  (8, 10)  and  (-7, 14)

         Slope  =  (14 - 10) / (-7 - 8)  =  4 / -15

#2).  (-3, 1)  and  (-17, 2)

         Slope  =  (2 - 1) / (-17 -  -3)  =  (2 - 1) / (-17 + 3)  =  1 / -14

#3).  (-20, -4)  and  (-12, -10)

         Slope  =  [ -10 - (-4) ] / [ -12 - (-20) ]

=========================================

The word problem:

This question only gives you one point on the graph,
and then it wants to know what's the slope ?
What are you going to do for another point ?

A "proportional relationship" always passes through the origin,
so another point on the line is  (0, 0) .

Now you have two points on THAT line too, and you can easily
find its slope.

You might be interested in
We are given arc KL is 12x+4, arc KJ is 8x-6, and angle E is 99 degrees. What is the actual degree measure of arc KJ? *
Svetlanka [38]

The  actual degree measure of arc KJ is 99 degrees

<h3>Circle geometry</h3>

From the given informtion

arc KL = 12x+4

arc KJ = 8x-6

<E = 99 degrees

The equation required to get the value of "x" is given as:

12x + 4 + 8x - 6 + 99 = 360

20x + 97 = 360

20x = 360 - 97

20x = 263

x = 13.15

For the arcKL

arcKJ = 8(13.15) -  6

arcKJ = 99degrees

HEnce the  actual degree measure of arc KJ is 99 degrees

learn more on circle geometry here: brainly.com/question/24375372

5 0
2 years ago
Of 201 adults selected randomly from one town, 179 have credit cards. Find a 90% confidence interval for the true proportion of
tino4ka555 [31]

Answer:

I think this is a probability problem.

Step-by-step explanation:

201*0.9 the divide by 179??

7 0
3 years ago
SOMEONE, PLEASE ANSWER ALL OF THESE PLEASE WHOEVER ANSWERS THEM ALL FIRST WILL GET BRAINLIEST
marissa [1.9K]
The answer to 10 is 17x^2y^3
3 0
3 years ago
Read 2 more answers
Find all values of x in the interval [0, 2π] that satisfy the equation. (enter your answers as a comma-separated list.) 6 sin(2x
anygoal [31]

6 sin 2x = 6 cos x Using the identity sin 2x = 2 sin x cos x:-

12 sin x cos x = 6 cos x

6 cos x ( 2 sin x - 1) = 0

either 6 cos x = 0 or 2 sin x - 1 = 0 so sin x = 1/2

x = pi/2, 3pi/2 , pi/6, 5pi / 6

answer is ( pi/6, pi/2, 5pi/6, 2pi/2)


6 0
3 years ago
Can somebody help please real quick
mylen [45]

I think it's the 2nd option.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The Davis family has five children and one dog. Claudia is 5 years older than Nicki. Nicki's twin brother, Hunter, is 12 years o
    13·1 answer
  • When Kylie asked her grandfather how old he was, he replied, "the two digits in my age are the ages of your brother isaac and si
    10·1 answer
  • Helpppppp pleaseeeeee
    13·1 answer
  • PLZZZZZZ can someone help me out with this and explain !
    12·2 answers
  • In the expression 4x squared minus 5x plus 9 the leading coefficiant is
    5·1 answer
  • Which shows the graph of the line with equation y = -2x + 1?
    15·1 answer
  • Plzzzzzzzzz help meeee
    13·1 answer
  • Can anybody help me please
    11·1 answer
  • What is the value of z in the equation 10z + 15 = -5
    8·1 answer
  • What’s 10^102????????€
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!