Question

someone can help me with Writing the Equation of a Line???? please

Answer 1

what do you need help with exactly? like a graph?

Answer 2

yees. i need help with this assessment..



Now it is your turn to plan the trajectories required to launch a spacecraft through a specific route in space. The launch area is identified on the map below.

Launch Area:___(1, 2)___
Point A:___(0, 3)___
Point B:___(-3, 0)___
Point C:___(-1, -4)___
1)Graph the cordinates of the specifics points in space your spacecraft will travel to.
You must show your work on each question below.
2)Determine the equation of the line, in standard form, that will get your spacecraft from the Launch Area to Point A.
3)Determine the equation of the line, in point-slope form, that will get your spacecraft from Point A to Point B.
4)Determine the equation of the line, in slope-intercept form, that will get your spacecraft from Point B to Point C.
5)Determine the equation of the line, in slope-intercept form, that will get your spacecraft from Point B to Point C.
6)Reflect back on this scenario and each equation you created. Would any restrictions apply to the domain and range of those equations? Explain your reasoning using complete sentences.

Answer 3

can you help me with something?

Answer 4

I'll try but no promises... your going to have to give me a minute or two

Answer 5

okaay

Answer 6

ok so I graphed the points and for #1 I used the slope form for the (1,2) and (0,3) to find the slope…. and then to find the y intercept used coordinate (0,3) and the slope in the formula y=mx+b to finally get y=-x+3 …. does that sound right to you?

Answer 7

since they wanted it in standard form I added x to y and got x+y=3….

Answer 8

yes, i think so. So the answer for #2 is x+y=3 ?

Answer 9

yes that is what i got

Answer 10

thank u. how about #3 ?

Answer 11

ok one minute

Answer 12

suree

Answer 13

so do you know what point slope form is?

Answer 14

y−y1=m(x−x1) ??

Answer 15

yep now find the slope of the 2 coordinates.

Answer 16

after that use coordinate of point be in the point slope form then you are done with #3

Answer 17

sorryyy. I had to leave a little bit. continuing, then the answer is x +3?

Answer 18

are you still here?

Answer 19

I am soooooo sorry I had to leave as well

Answer 20

but to answer your previous question yes that is right but make sure that it is set up
y-0=1(x+3) because it must be set up in point slope form.

Answer 21

its okay , im confused now. on the next one #4 I got -2x-6 .. isn't this right?

Answer 22

so are you confused with #3 and why it is y-0=1(x+3)?

Answer 23

yess, I thought it was just x+3

Answer 24

no, the question asks for point slope form which is y-y1=m(x-x1), so even though it seems like the zero doesn't matter in the equation in reality it does. that's why it is y-0=1(x+3)

Answer 25

are you with me?

Answer 26

yees, but y1 is not 0 . it is 3? thats why i'm confused

Answer 27

y−y1=m(x−x1)
y-3=1(x-0)
y-3=1x
y=x+3
I did like that. idk if is right

Answer 28

ok so you used point a as your coordinate I used point b…. i really don't know which should be used but in essence you don't want to simplify anything you leave it at step 2
y-3=1(x-0) because that is point slope form.

Answer 29

for #4 you did it right… y=-2x-6

Answer 30

wait , then the answer is y-3=1(x-0) or y-0(x+3) ?

Answer 31

…. see that's what not clear to me the question gives you 2 different coordinates which mean you have to pick one of them… I would put both answers just in case.

Answer 32

oh, okay . so #5 I got Y= -1x+3 . Is this right?

Answer 33

… #4 and #5 are the same question is there a type o ?

Answer 34

yess

Answer 35

so my answer is correct?

Answer 36

for #4 yes… y=-2x-6

Answer 37

how about #5 ?

Answer 38

#5 says the exact as #4 so is there a type o?

Answer 39

ohhh right.. question #5 is wrong . That would be 5)Convert the equations you arrived at in question 2 and into slope-intercept form. Make sure to include all of your work.

Answer 40

now my answer makes sense?

Answer 41

Y= -1x+3

Answer 42

yes that's right :D

Answer 43

haha ok. can u help with the last one? I have no idea.

Answer 44

um…. I would say x and y \[\neq 0\] or x and y \[\ge 0\] … I'm not sure…. hope I've helped :/

Answer 45

okay, thank you so much! You helped me a lot! :))

Answer 46

YAY!!! you've made my day!!!

Answer 47

:D

Answer 48

haha :D