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
Butoxors [25]
3 years ago
11

Write a function to represent the set of ordered pairs. {(2, -2), (3, 8), (4, 22), (5, 40)}

Mathematics
1 answer:
natali 33 [55]3 years ago
4 0

Answer:

y = 2x² - 10

Step-by-step explanation:

We must find a pattern in the numbers. Set out the numbers in a table (Columns 1 and 2 in the table).

<u>x</u>    <u> y</u>    <u>y/2</u>    <u>y/2 + 5 </u>

2   -2      -1           4

3    8       4           9

4  22      11          16

5  40    20         25

It looks like all y-values are multiples of 2.

Let's divide them by 2 (Column 3).

The numbers don't increase evenly. We may have a quadratic function.

If we add 5 to each quotient, we get a set of values equal to x² (Column 4).

y/2 +   5 = x²

y     + 10 = 2x²

y            = 2x² - 10

The function is y = 2x² - 10.

You might be interested in
-6x-4+5x=4<br> What is "x". Please show your work.
4vir4ik [10]

Answer:

first thing to do is combine like terms

now you would have -x-4=4

this is because you added -6x+5x

now you would add 4 to each side

now you would have-x=8

then you would divide the negative because x has to be positive

now you would have x= -8

that is your answer. if you any questions just ask :D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
birute deposite $500 In a savings account with a simple interest rate of 1.3% . how could you use this information to find the i
vladimir2022 [97]

Money Birute deposited in a savings account = $500

Rate of simple interest per annum = 1.3%

▪︎We need to find the interest she will earn in 4 years.

We know that :

\tt \: \color{hotpink}simple \: interest \color{plum}=  \frac{principal \times rate \times time}{100}

In this case :

Principal = $500

Rate = 1.3%

Time = 4 years

Which means :

The simple interest she will earn in 4 years :

= \tt \frac{500 \times 1.3 \times 4}{100}

= \tt \frac{2600}{100}

\color{plum} = \tt\bold{\$26}

Thus, the simple interest she will earn in 4 years = $26

Amount = Principal + Interest

Amount she will gain after 4 years :

=\tt 500 + 26

\color{plum} = \tt\bold{\$526}

Thus, the amount she will gain after 4 years = $526

Amount change in her account = 526 - 500 = 26

We know that :

\tt \: \color{hotpink}percentage \: of \:  change\color{plum} =  \frac{change}{original \: price}  \times 100

Which means :

Percentage of change in her savings account :

=\tt  \frac{26}{500} \times 100

=\tt  \frac{26 \times 100}{500}

=  \tt\frac{2600}{500}

\color{plum} = \bold{\tt\bold{5.2\%}}

<h2>○=> Therefore :</h2>

▪︎Simple interest after 4 years = $26

▪︎Money she will earn after 4 years = $526

▪︎Percentage of change in her savings account = 5.2%

6 0
3 years ago
Jillian is selling boxes of cookies to raise money for her basketball team. The 10 oz. box costs $3.50, while the 16 oz. box cos
n200080 [17]
The answer would be 15 boxes!
4 0
2 years ago
Read 2 more answers
Alejandra currently has a balance of $2,254 in her checking account. She deposits a $873.84 paycheck, a $25 rebate check, and a
zaharov [31]

Answer:

$3160.84

Step-by-step explanation:

2254 + 873.84 + 25 + 358 = 3510.84

3510.84 - 350 = 3160.84

7 0
2 years ago
What is the third side of 5 and 7 phyagorean theorem
Mrrafil [7]
If you want to find the hypotenuse then the formula applied is c^2=a^2+b^2 where c is the hypotenuse. 5^2+7^2=8.6
7 0
3 years ago
Read 2 more answers
Other questions:
  • Can some explain me how to find the answers
    12·2 answers
  • AB is tangent to circle O at B. Find the length of the radius, r, for AB = 5 and AO = 13.
    14·2 answers
  • Solve the equation x^13-2x^12-x^11+2x^10=0 in the real number system
    15·1 answer
  • What is the difference of 23x and 9x?
    12·2 answers
  • What is the distance between (−5,−4) and (-6,4)?
    7·1 answer
  • Peyton is 11 years old and knows 10-7=3 and 3+7=10 but finds it difficult to solve a math problem, such as 3x-5, because she can
    12·1 answer
  • Which of the following expressions could be interpreted as "a number times negative seven added to five equals two"?
    10·2 answers
  • X is a positive integer and 15x - 43 &lt; 5x + 2. Work out the possible values of x.​
    13·1 answer
  • Write -2 + 4 + -8 + ...+ 64 +-128 in sigma notation. Then determine the sum.
    14·1 answer
  • Best answer gets Brainliest!!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!