Question

find the equation of the line thorugh the given pair of points in standard form using only intergers (5,2)and (-1,6)

Answer 1

hellpp

Answer 2

whut 0_o math?

Answer 3

Sooo uhhh, this line you speak of...
it has some points..

Answer 4

y=mx+b

Answer 5

Standard form? Mmm that's no fun.

Answer 6

Slope-intercept form? Ok good good, we can work with that :)

Answer 7

m=-1/3

Answer 8

-2/3

Answer 9

\[\Large\rm (5,2), \qquad (-1,6)\]
\(\Large\rm m=\frac{6-2}{-1-5}=-\frac{2}{3}\)

Mmm ok good, that looks better :)

Answer 10

2=-2/3(5)+b

Answer 11

Mmmmm k, and b isssss? :O

Answer 12

16/3

Answer 13

??

Answer 14

Ok great! Problem is almost done!

Answer 15

\[\Large\rm y=-\frac{2}{3}x+\frac{16}{3}\]Now to put it into `standard form`.
Do you remember what that looks like?

Answer 16

2/3x+y=16/3 but wait i got that ... thats not one of my multiple choices lol

Answer 17

Ok that's a good step.
The final step would be to get rid of the fractions.
We don't want fractions in standard form.

Answer 18

my choices are
a) 4x+6y=32
b) 4x-6y=32
c)6x+6y=32
d) 4c+6y=-32

Answer 19

and ok

Answer 20

but how

Answer 21

Multiply both sides by the `Least Common Multiple` of your denominators.
Since we only have 3's in the denominator, it makes it a bit easier.
We'll multiply both sides by 3.

Oops oops oops.
Someone was being stupid when they made your multiple choice options, not your fault.

So instead we'll multiply both sides by 6.

Answer 22

k

Answer 23

\[\Large\rm 3y=-3\frac{2}{3}x+3\frac{16}{3}\]Do you see the nice cancellations?

Answer 24

Woops I did 3 when I told you to do 6 lolol

Answer 25

its a

Answer 26

:)))))

Answer 27

Yay good job \c:/

Answer 28

i haave one more question im lost on

Answer 29

What'chu got? :U

Answer 30

carl participates in a bowling tournament. after completing 5/8 of the game, his average score per game is 200. what must his average score be in the remaining games in order for his overall game to be 226.25? round your answer to the neitest point.

Answer 31

Mmmm I've always hated these types of problems lol.
Here is how I'm interpreting it.

5/8 of the 200 points, plus 3/8 of some unknown amount should add up to 8/8 of 226.25, the score he's trying to achieve.\[\Large\rm \frac{5}{8}\cdot 200+\frac{3}{8}x=226.25\]

Answer 32

There's probably a more intuitive way to interpret it than that...
But whatev :p

So from there, you solve for x.

Answer 33

270:)))))))))))))))))

Answer 34

@zepdrix gave you correct solution to solve to find the answer.
Here's how I think of it.
Since 5/8 of the tournament is done, and he has 3/8 to go, let's assume he has played 5 games and will play 3 more.

Answer 35

can you tell me if this is correct

Answer 36

To average 200 in 5 games means he scored a total of x points which when divided by 5 gave an average of 200.
x/5 = 200, or x = 1000

Answer 37

You are correct.

Answer 38

Yay good job lexi \c:/

Answer 39

factor the sum or difference of two cubes
64p^3-1
my answer (4p+1)(16p^2-4p+1)

Answer 40

He has 1000 points from the first 5 games.
From the last three games he needs a total of points so that his overall average will be 226.25

Answer 41

\[\Large\rm a^3-b^3=(a-b)(a^2+ab+b^2)\]Did you use the wrong formula maybe? :o

Answer 42

For an 8-game average of 226.25, he needs 226.25 * 8 = 1810 total points.
He already has 1000 from the first 5 games, so he needs 810 from the last 3 games.
810/3 = 270
The average for the last 3 games is 270.

Answer 43

ok i getit more now thanks

Answer 44

is the answer for other question
(4p+1)(16p^2-4p+1)