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victus00 [196]
3 years ago
6

Write the equation that represents the data in the table shown. Explain your answer.

Mathematics
1 answer:
Archy [21]3 years ago
7 0

The equation that represents the data in the table is y = 4x – 2.

Solution:

Take any two point from the table.

Let the points taken are (0, –2) and (3, 10).

x_1=0, y_1=-2, x_2=3, y_2=10

Slope of the line:

$m=\frac{y_2-y_1}{x_2-x_1}

$m=\frac{10-(-2)}{3-0}

$m=\frac{12}{3}

m = 4

Using point-slope formula,

y-y_1=m(x-x_1)

y-(-2)=4(x-0)

y+2=4x

Subtract 2 from both sides, we get

y = 4x – 2

The equation that represents the data in the table is y = 4x – 2.

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kotegsom [21]

Answer:

The graph is shifted 7 units and 5 units. Left and Up.

4 0
3 years ago
solve the following compound inequality graph the solution 7x = 35 ? please help and also show ur work on how u got it ​
erma4kov [3.2K]

7x = 35 \\  \frac{7x}{7 }  =  \frac{35}{7}  \\ x = 5

3 0
3 years ago
-1/3x-4/3y=-2 1/3x-2/3y=4 using elimination
Minchanka [31]

-1/3x-4/3y=2

1/3x-2/3y=4

First realize that the coefficient of x is -1/3 and 1/3 which can be eliminated with addition

Adding the two equations together gets

-6/3y=6

Simplify

-2y=6

y=-3

Substitute back into original equation

1/3x-2/3(-3)=4

1/3x+2=4

1/3x=2

x=6

Answer

x=6, y=-3

Check answer

-1/3(6)-4/3(-3) =?= 2

                -2+4=2

                     2=2

Done!

5 0
2 years ago
The college hiking club is having a fund raiser to buy new equipment for fall and winter outings. The club is selling Chinese fo
PolarNik [594]

Answer:

a)

- the probability she will win the dinner for two is 0.016

- the probability she will not win the dinner for two is 0.984

b)

- Lisa's expected earnings is $0.57

- Money she effectively contributed to the hiking club is $11.43

Step-by-step explanation:

Given the data in the question;

fortune cookies; $1 per cookies

club sold 743

a) Lisa bought 12 cookies. What is the probability she will win the dinner for two?

P( she will win ) = Number of cookies bought / Total number of cookies

P( she will win ) = 12 / 743

P( she will win ) = 0.01615 ≈ 0.016

Therefore,  the probability she will win the dinner for two is 0.016

P( she will not win ) = 1 - P( she will win )

P( she will not win ) = 1 - 0.016

P( she will not win ) = 0.984

Therefore,  the probability she will not win the dinner for two is 0.984

b)  Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? (Round your answer to two decimal places.)$

given that value of dinner = $35

P( she will win ) = 0.01615

so

Lisa's earning = $35 × 0.01615

Lisa's earning = $0.57

Therefore, Lisa's expected earnings is $0.57

- How much did she effectively contribute to the hiking club? (Round your answer to two decimal places.)$

Lisa's contribution = Money she paid for cookies - money from expected earnings

Lisa's contribution = ( 12 × $1 ) -  $ 0.57

Lisa's contribution = $12 -  $0.57

Lisa's contribution = $11.43

Therefore, Money she effectively contributed to the hiking club is $11.43

4 0
3 years ago
The process of digging a site includes a. carefully recording the location of artifacts. b. accurate descriptions of the artifac
Mice21 [21]

Answer:

The process of digging a site includes

D or B

8 0
3 years ago
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