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
ValentinkaMS [17]
3 years ago
12

Write an eqution to the table. y x 3 1 1.5 2 1 3

Mathematics
2 answers:
hram777 [196]3 years ago
5 0

Answer:

f(x)=0.5x^2-3x+5.5

Step-by-step explanation:

We can see by some observation that this is not linear because the slopes aren't constant.

So, let's see if it's quadratic. Suppose that it is and the function we want to find is: f(x)=ax^2+bx+c

Plug in some of the given values into the equation:

3 = a + b + c               ------------ eq 1

1 = 9a + 3b + c           ------------ eq 2

1.5 = 4a + 2b + c        ------------ eq 3

Let's multiply eq 3 by 2 and then subtract it from equation 2:

   1 =  9a + 3b + c

-  3 = 8a + 4b + 2c

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

  -2 = a - b - c

Now, add this equation to eq 1:

   -2 = a - b - c

+   3 = a + b + c

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

    1 = 2a

    a = 1/2 = 0.5

Now, plug this value of a back into both eq 3 and eq 1:

Eq 3: 1.5 = 4 * 0.5 + 2b + c  ⇒  1.5 = 2 + 2b + c  ⇒  -0.5 = 2b + c     ----- eq 5

Eq 1: 3 = 0.5 + b + c  ⇒  b + c = 2.5   ------ eq 4

So, we have a system of linear equations. Subtract eq 4 from eq 5:

    2b + c = -0.5

-      b + c = 2.5

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

      b = -3

Substitute this value of b into b + c = 2.5 and solve for c:

-3 + c = 2.5

c = 5.5

So, a = 0.5, b = -3, and c = 5.5. Now, our equation is:

f(x)=0.5x^2-3x+5.5

Hope this helps!

olasank [31]3 years ago
5 0

Answer:

y = 3/x

Step-by-step explanation:

y = 3/x

xy = 3

3×1 = 3

1.5×2 = 3

1×3 = 3

You might be interested in
.16 with the 6 repeating to a fraction
SVETLANKA909090 [29]
The answer is


1/6









1/6
5 0
2 years ago
Expand the following numbers 62,336,003
madreJ [45]

Answer:

6×10^(7)+2×10^(6)+3×10^(5)+3×10^(4)+6×10^(3)+3

8 0
3 years ago
Of the sundaes recently sold at Ice Cream Haven, 9 had nuts and 6 did not. Considering this data, how many of the next 10 sundae
kicyunya [14]
6 would have nuts and 4 wouldn’t
7 0
3 years ago
What does this mean ---->> 9e+10 please explain the answer
GenaCL600 [577]
This expression can't be solved because we don't know the value of e. Basically what this means is that e, an unknown number, is first being multiplied by 9, and it is then added by 10. You will just leave it as it is.
5 0
3 years ago
A theme park had 1099 visitors in 3 days.There were twice as many visitors on saturday than on Friday.There were 234 more visito
Blababa [14]

Answer: there were 692 visitors on Saturday.

Step-by-step explanation:

Let x represent the number of visitors that were there on Friday.

Let y represent the number of visitors that were there on Saturday.

Let z represent the number of visitors that were there on Sunday.

The theme park had 1099 visitors in 3 days. It means that

x + y + z = 1099- - - - - - - - - - - - - -1

There were twice as many visitors on saturday than on Friday. This means that

y = 2x

x = y/2

There were 234 more visitors on Sunday than on Saturday. This means that

z = y + 234

Substituting x = y/2 and z = y + 234 into equation 1, it becomes

y/2 + y + y + 234 = 1099

Cross multiplying by 2, it becomes

y + 2y + 2y + 468 = 2198

5y = 2198 - 468

5y = 1730

x = 1730/5

x = 346

y = 2x = 2 × 346

y = 692

z = y + 234 = 692 + 234

z = 926

3 0
3 years ago
Other questions:
  • Decide which unit rate is greatest and explain why using complete sentences.
    11·1 answer
  • What is most likely the length of a telephone book
    9·1 answer
  • Travis has decided to budget his spending money. He can spend no more than $ 143.15 every month. He has also decided to spend 5.
    13·1 answer
  • The product of any interger and 2 is greater than 2 what is the answer
    12·2 answers
  • It took Jill two hours to drive 100 miles. what was her average speed?
    5·2 answers
  • The HCF of two numbers is 16 and their product is 3072. Find their LCM
    7·1 answer
  • If a pizza is split evenly among 3 people, which of the following is the most accurate description of the amount of whole pizza
    13·2 answers
  • HELP ME PLEASE ASAP WORK DUE IN AN HOUR PLEASEEE!!!! WILLING TO GIVE ANYTHING
    14·1 answer
  • What is a multiple of 4/5
    14·2 answers
  • -12.6x -4.9x = - 154
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!