Question

write the slope for m= 3/2;(7,4)

Answer 1

???
the slope is given
do you mean write the equation of the line?

Answer 2

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 3

yea sorry

Answer 4

take your point and slope, substitute them into the point slope equation, and solve for either standard form or slope intercept

Answer 5

i dont know how to do stuff like that yet

Answer 6

look at the point slope formula

see x1 and y1?

(x1,y1)= (7,4)
x1=7
y1=4
m=3/2

Answer 7

ok yea i see

Answer 8

so i divide 3 and 2 then what?

Answer 9

you there?

Answer 10

no leave the slope as a fraction

Answer 11

you know x1, y1, and m
so "plug them into" the point slope formula above

Answer 12

so x1 means 7 and y1 means 4 so my answer is m=3/2 ?

Answer 13

no m is the slope....

Answer 14

oh lol so what do i do to get my answer

Answer 15

we want the equation of the line, not the slope
slope is already given....

Answer 16

read through my crap, until you think you fully understand it
then send me a message

Answer 17

sorry im trying to understand it

Answer 18

y-y1=m(x-x1)

y1=7
m=3/2
x1=4
we substitute them into the point slope equation...
y-7=3/2(x-4)

how do you not understand substitute

Answer 19

i didnt have any of that when i went to school lol

Answer 20

... grade ?

Answer 21

school since 1993 then got mu high school diploma at home , now im trying to do college and i pass everything except algebra

Answer 22

you shouldve been taught algebra in middle school

if a=b and b=c
then a=c
yes or no

Answer 23

no clue sorry thats why im trying to read everything but its hard without a teacher lol...

Answer 24

if

Answer 25

if
A is equal to B
B is equal to C
is A equal to C?

Answer 26

lol my son said he didnt know neither

Answer 27

this is true

it is known as the transitive property

and one of the basis of substitution

Answer 28

i will remember that lol thanks

Answer 29

do you know what a variable is?

Answer 30

changing something/

Answer 31

not exactly
in algebra/ math
a variable is a symbol (usually letters) that represent a number but is not actually one

think of it kind of like an empty chair, it represents that a person is sitting there but the person is not actually there sitting in it

Answer 32

oh kool

Answer 33

commonly used variables are x, y,a,b,c

now where im saying
x=2

im giving the x variable a value

in this case, x is equal to two (filling up that chair with 2 pieces of paper)

if i say x=7y

it means that x is equal to 7 times another variable

analogy an empty chair holds the same amount as 7 empty buckets

Answer 34

now example

if i gave you this expression

x+y=z
and also said x=1 and y =2
and wanted you to find z

do you think you can do it?

Answer 35

1+2=3

Answer 36

basically what we do here is we substitute
we dont know the value of z but we know the value of x and y

therefore we will get the equation
1+2=z

z=3

Answer 37

yay lol

Answer 38

ok now what if i said
x=3 and y=x-1

find z for
x+y=z?

Answer 39

since we know y is equal to x-1, we can substitute that in place of y
so we will then get
x+(x-1)=z

because we alreayd know x is equal to 3

3+(3+1)=z