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
Soloha48 [4]
3 years ago
9

Help my small brain understand.

Mathematics
2 answers:
Serhud [2]3 years ago
5 0

Answer:

y = 7x

Step-by-step explanation:

1: slope (m)- as the x-variable goes up by 1, the y-variable goes up by 7. So, the ∆y/∆x = 7. Therefore,<em> the slope is 7</em>.

2: y-intercept (b)- When x = 0, <em>y also has to be 0</em>, since all of the x-variables multiplied by 7 gives the related y-variable, without any adding.

3: plug in- y = 7x + 0 --> y = 7x

marin [14]3 years ago
3 0

You have to write a linear equation that fits these points. For this, you will need to find the slope and the y intercept of the points.

To find the slope, get any two points provided. I will use (1,7) and (2,14). The formula to find the slope is y²-y/x²-x. This just means that you subtract the first y value from the second, so 14-7=7, and divide by the second x value minus the first, so 2-1=1. Now you divide 7/1=7, and that is your slope.

The y intercept is the y coordinate when x is zero. You can see that the pattern in the table is to add 7 each time, so when x is 0 y would be 0 as well. This means that your y intercept is 0.

Now to write the actual equation, m=slope and b=y intercept. Just plug in your values into the y=mx+b equation to get y=7x+0, or just y=7x. ;)

You might be interested in
Draw a model... write an equation and solve....this is the directions for a  4th grade math homework problem....Help?????
padilas [110]
Boxers = b
Spaniels = s

b=s*4
s+b=30

Now you have two equations - one that tells you the number of boxers in relation to spaniels and one telling you the number of each breed in relation to the total number of dogs. Solve using substitution.

s+(4*s)=30 \\ 4s+s=30 \\ 5s=30 \\ s=6

There are 6 spaniels.
6 0
3 years ago
Mrs. Harrison borrows $600 to pay for a new phone. The simple interest on the loan is 9% for one year.
Lelu [443]

Answer:

$654

Step-by-step explanation:

600*1.09=654

6 0
3 years ago
Read 2 more answers
Please help!!!!!!!! Find radius and diameter. will mark brainiest!!!!!!!!!!
mylen [45]

Answer:

The radius is given its 10 in

The diameter is 20 in

Step-by-step explanation:

Two find the diameter given the radius you just multiply by 2

10x2=20 therefore the diameter is 20

Hope this helps :)

8 0
2 years ago
Read 2 more answers
Ms. Pecho currently owes $637.50 simple interest
rusak2 [61]

Answer:

Step-by-step explanation:1

1/2 years which is 1 year and 5 months.

Explanation:

The formula for simple interest is

You can either substitute the given values first and the solve for

T, or you can transpose the formula to have

T as the subject.

T=100xSIPR

T=100 x 637.50

T=100×637.502500×17

T=1.5

As time is always in years, this means it was for

112 years which is 1 year and 5

months

6 0
3 years ago
What proportion of the first 10,000 natural numbers contain a 3
Sergeeva-Olga [200]
In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n  (contain a 3).


&#10;&#10;So for 10^4 -> 10^4 - 9^4 = 10.000 - 6.561 = 3.439 &#10;

<u>The answer is 3.439 numbers contain a 3 in the first 10.000</u>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the roots for y = 3x2 - 5x - 1
    14·1 answer
  • Really easy question I’m<br> Just really tired
    9·1 answer
  • What is 5.61 written as a percent?<br><br> 0.0561%<br> 0.561%<br> 56.1%<br> 561%
    14·2 answers
  • Sean has a bag containing x green marbles and two bags containing y blue marbles. He adds 15 marbles to the bag of green marbles
    10·1 answer
  • 13.845 - 10.87-<br> What is this
    14·2 answers
  • What are the names of the witches in the wizard of oz?
    11·2 answers
  • 7-4i divided by <br> 2+i <br> how to solve it?
    12·1 answer
  • how doi do 1 only? i honestly don't know how to do it. first one to answer is brainliest. if you mind plz also send me the answe
    6·2 answers
  • Multiple answers please help!!
    9·1 answer
  • PlZZ help me
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!