Question

3 EASY ALGEBRA PROBLEMS

Answer 1

1. slope intercept form is y=mx+c

Answer 2

where m is slope and c is y intercept

Answer 3

Check the options if you have an equation in that form

Answer 4

which question is this for? @AravindG

Answer 5

1st one

Answer 6

Do you remember the formula for finding the slope of two points? @haleycoulter

Answer 7

c @AravindG

Answer 8

yep you are right !

Answer 9

Do you remember the formula for slope intercept form? @haleycoulter

Answer 10

for next question ..first find equation of given line .

Answer 11

do you know how to get the equation ?

Answer 12

What do you think the answer is for the second equation and third equation? @haleycoulter

Answer 13

I think that one is B @AravindG

Answer 14

You think that the 2nd problem is B? @haleycoulter

Answer 15

yeah

Answer 16

wait i need to check that

Answer 17

what dd you get as equation of the given line ?

Answer 18

I have no idea...

Answer 19

ok you see the given line has intercepts both on x axis and y axis .So you can use intercept form to get eqn of line

x/a+y/b=1 where a is x intercept , b is y intercept

Answer 20

now can you telll ?

Answer 21

it's not clicking sorry :/

Answer 22

IMPORTANT LINE RELATED EQUATIONS TO KNOW AND MEMORIZE

slope formula
m= slope/ gradiant -- same thing
\[m=\frac{y_2-y_1}{x_2-x_1}\]

standard formula
\[Ax+By=C\]

point-slope formula
\[y-y_1=m(x-x_1)\]

slope-intercept formula
b= y-intercept -- in the form of (0,y)

\[y=mx+b\]

Answer 23

A is the x intercept and B is the y intercept. @haleycoulter

Answer 24

seems you need to first thoroughly go through basic equations first ...check my tutorial :

http://openstudy.com/updates/50f8cc3fe4b027eb5d9a556a

Answer 25

@haleycoulter She says that she thinks that the answer is C. @AravindG

Answer 26

well skipping to the third question I got the answer A

Answer 27

when did she say that ?

Answer 28

why skip ?

Answer 29

She sent it to me in an email addressed to me.

Answer 30

Can you tell me why you think it is C @haleycoulter ?

Answer 31

@haleycoulter We will help you only if you don't skip the questions that you posted.

Answer 32

^^ yep we are here to learn not give you answers directly :)

Answer 33

guessing is a bad option

Answer 34

Well for the third question I did y2-y1/x2-x1 that's how I got 1

Answer 35

Yes, I agree with @AravindG

Answer 36

how ? 4-3= ? 1-2= ?

Answer 37

and the 2nd question i actually think it's A because

slope: (y-y)/(x-x)
(5-3)/(3-0) = 2/3

Slope of a line perpendicular to that is the negative reciprocal: -3/2

y = mx + b
-3 = (-3/2)(2) + b
b = 0

y = -3/2x

Answer 38

oh shoot @AravindG my bad i screwed that up it should be -1

Answer 39

\[\checkmark \]

Answer 40

Yes, good job, now do the second problem. @haleycoulter

Answer 41

wait a sec ..how did you find the slope like that ?

Answer 42

for findind slope it is

slope=difference of y coordnates/diff of x coordinates

Answer 43

that will give me 3-0/0-(-5)

Answer 44

ugh I give up I'm just guessing on that one :/

Answer 45

I learned it this way \[y^{2}-y^{1} \over x^{2}-x^{1}\]

Answer 46

why give up ? you are almost there !

Answer 47

No guessing, that is not the way to do math. @haleycoulter

Answer 48

Oh well

Answer 49

so do you understand what I said above ?

Answer 50

no idea

Answer 51

find slope as I showed above