Question

Can someone help me get the answer and show how they got it?

Answer 1

@Nnesha do you know any of this stuff?

Answer 2

@paki @Luigi0210 @lynzandriptide @isry98

Answer 3

y=mx+b is slope intercept form where `m` is slope and `b` is y-intercept

Answer 4

How'd you get it though?

Answer 5

i didn't get anything it's the original equation for slope intercept form

Answer 6

OH sorry! Could you help me solve ABCD for that problem? and explain how you got the answers

Answer 7

y=mx+b is slope intercept
parallel lines should have the same slope
example if the slope of line `a` is 2 then slope of line `b` would be 2 as wll
slope of perpendicular lines are `negative reciprocal` if slope of line a is a/b then slope of `b` would be -b/a

Answer 8

okay!

Answer 9

so what's the slope of line J ??

Answer 10

Y=-4+2x?

Answer 11

just slope

Answer 12

like i said y=mx+b m is slope which is always with x variable

Answer 13

so 2?

Answer 14

yes right

Answer 15

now we need equation of the line that's parallel to y=2x+4
slope of new line would be what ?
parallel lines would have the same slope

Answer 16

so it's the same?

Answer 17

yes right

Answer 18

SO that would be by anwser for A?

Answer 19

yes what about B ?

Answer 20

The same because anything that's parallell is the same

Answer 21

yes right!

Answer 22

OK:)))

Answer 23

so part C) find the equation
m=2 we already know that
so y =mx+b use the order pair they gave u for x and y values and replace m with 2 to find b

Answer 24

\[\huge\rm y=2x+b\] passes through (3,7)
so replace (x,y) with (3,7) and solve for b

Answer 25

7+2*3+b?

Answer 26

if you mean 7 `=` 2(3)+b then yes now solve for b

Answer 27

1?

Answer 28

yes right
so b=1 now you can replace b with one in the original equation

Answer 29

7=2(3)+1

Answer 30

well we need in slope intercept form so keep the x and y variables
y=2x+1

Answer 31

thank you

Answer 32

last part if the we need line that's perpendicular to line j
y=2x+4
like i said perpendicular slopes are negative reciprocal
so what would be the slope of line h ?

Answer 33

i've to go will be back

Answer 34

y=-4+2x

Answer 35

ok how long?

Answer 36

oh well got few mints

Answer 37

oh good!

Answer 38

alright here is ane example if slope of the first line is a/b then perpendicular slope would be `-b/a` <--flipped the fraction and changed the sign

Answer 39

so what's the perpendicular slope for line h ?

Answer 40

So I had it right?

Answer 41

no

Answer 42

-4+2x=y

Answer 43

i said slope would negative reciprocal
but the slope of the equation u posted is the same like J=2x+4

Answer 44

remember : parallel lines `same slope `
perpendicular slopes `negative reciprocal`

Answer 45

ok

Answer 46

what's the slope of line j ?

Answer 47

-4+2x=j

Answer 48

why are u keep posting that equation ?
j=2x `+` 4

Answer 49

ok

Answer 50

what's the `slope`( not the equation) of line J ?

Answer 51

2

Answer 52

yes right so slope of line h would be negative reciprocal of 2

Answer 53

you prob think im stupid but are we on C or D?

Answer 54

for which part they are asking `perpendicular ` equation ? :=)

Answer 55

D:)

Answer 56

yes so ofc D

Answer 57

here is an example if slope of first equation is a/b then slope of perpendicular equation would be -b/a
so if the slope of line J is 2 then slope of line h would be what ?

Answer 58

-2

Answer 59

what's the reciprocal of 2 ?
it's same as 2/1

Answer 60

1/2

Answer 61

or 1

Answer 62

no 1/2 is right so it would be -1/2

Answer 63

ok

Answer 64

now replace m with -1/2 and substitute (x,y) for given order to find b

Answer 65

help

Answer 66

what's the original equation of slope intercept ?

Answer 67

for **

Answer 68

j=2x=4

Answer 69

+4

Answer 70

you really like that equation
y=mx+ b is the original equation replace m with -1/2 and then (x,y) with the given point in part D

Answer 71

-1/2+8+10

Answer 72

hmm y=mx+b
y value should at left side

Answer 73

just like u did for part C

Answer 74

10=-1/2(8)

Answer 75

yes right solve for b 10=-1/2(8)+b

Answer 76

gtg

Answer 77

ok

Answer 78

b=21/2=10.500

Answer 79

hmm no \[10=-\frac{ 1 }{ 2 }(8)+b\] you can divide 8/2

Answer 80

it shouldn't be decimal