Question

can i somone help me???

Answer 1

Choose the equation of the line passing through the point (2, -4) and parallel to y = 3x - 6.

Answer 2

?????

Answer 3

can you tell what will be the gradient or slope of the given line?

Answer 4

yah the 2,-4?

Answer 5

those are points.. not the fradient..
y=mx+c
m=gradient.

Answer 6

y = 3x - 6. i am asking for the gradient of this line?

Answer 7

ummmm 3

Answer 8

yes... 3
so when two lines are parallel they have the same gradient.. you have to remember this point..

Answer 9

ok so do i go over 3 and down 6?

Answer 10

now m=3
(2,-4)
y -y1= m(x-x1)
just plug in the values you will get the equation.

Answer 11

no you dont have to go down or anything you just have to see what is the gradient of the given line.. (3 it is) now this given line is parallel to the line which we have to find.. they are parallel (m=3 for the equation of line we have to find)

Answer 12

now m=3 (2,-4) y -y1= m(x-x1) just plug in the values you will get the equation.

Answer 13

now m=3
(2,-4)
y -y1= m(x-x1) just plug in the values you will get the equation.

Answer 14

so its y-(-4)3(x-2)

Answer 15

ya but u missed the = sign in the middle.

Answer 16

ok so its y-(-4)=3(x-2)

Answer 17

yes.

Answer 18

now just simplify it ..

Answer 19

how?

Answer 20

y +4 = 3(x) - 3 (2)
y+4= 3x-6
y = 3x- 10

Answer 21

but how did u get 10?

Answer 22

did you get how i got y+4 = 3x -6 ?

Answer 23

yah and i put that answer down nd then i hav another equation just lik it but i didnt com out with a correct answer

Answer 24

hmm ok.. i just subtracted 4 from both sides.. that's how i got 10

Answer 25

ohh ok hold on

Answer 26

th problem i hav is this :Choose the equation below that represents the line passing through the point (2, -5) with a slope of -3. so i did th formula tht u did and i got y=3x-7

Answer 27

y+5=3x-6
now subtract 5 from both sides.. i believe that would not be the same answer as yours.

Answer 28

lol yah cuz i didnt do the 3 tims 2

Answer 29

lol oops i think i did something wront.. it's -3

Answer 30

y+5 = -3x -6

Answer 31

but what if w had a fraction in the problem thn what would we do?

Answer 32

if u have 2y= 8x+4
now u have to make y isolate.. so in this case just divide both sides by 2

Answer 33

nooooo lik this :Choose the equation below that represents the line passing through the point (1, -4) with a slope of one half.

Answer 34

y+4 = 1/2 (x-1) to eliminate denominator from 2 first you can multiply both sides with 2, it will become
2y+4 = 1(x-1)
now rest is same.

Answer 35

no cuz there is no slop in the middle like in the others

Answer 36

hmm what? sorry i didn't get your point

Answer 37

ok look this is what you said 2y+4 = 1(x-1) w have to solve but it dosent look like this y-(-4)=3(x-2) see how there is tht 3 in the middle of the problem

Answer 38

\[y-(1) = \frac{ 1 }{ 2 } (x-(-4))\]

\[2\times(y-1 )= 2\times \frac{ 1 }{ 2 } (x+4)\]

Answer 39

ok sooooo

Answer 40

\[2y- 2 = 1 (x+4)\]

Answer 41

now does it look a lil same like before?

Answer 42

yes

Answer 43

so can you do now?

Answer 44

idk hold on

Answer 45

yah i got it