Question

help please

Answer 1

Launch Area:___(1, 2)___
Point A:___(0, 3)___
Point B:___(-3, 0)___
Point C:___(-1, -4)___


2. Determine the equation of the line, in standard form, that will get your spacecraft from the Launch Area to Point A.

Answer 2

i know the answer is Y = 3 – x but could you explain the steps

Answer 3

What are the boxes between 3 and x?

Answer 4

-

Answer 5

oh ok I see it now. Well you would just use the slope formula (y-y/x-x) to find the slope, which would turn out to be 1, and then the y-intercept is given, +3

Answer 6

When put into slope intercept form, it would be y = x + 3
Then you have to convert it to standard form so...
Subtract y from each side to get ___ = x + 3 - y
Then Subtract 3 from each side
So you'll have: x - y = 3

Answer 7

oh ok could i get help with one more since its like the same question

Answer 8

Sure lol, I think I did this same question in my class

Answer 9

4. Determine the equation of the line, in slope-intercept form, that will get your spacecraft from Point B to Point C.
Y = -2 x - 6

Answer 10

can yah show the steps please

Answer 11

Yes, hold on. Oh and I just went and checked the work that I had submitted when I was on that, I told you the slope for the first problem was 1, but it's actually -1 sorry

Answer 12

oh ok

Answer 13

the first one in standard form is x + y = 3

Answer 14

for your first question, you say
**i know the answer is Y = 3 – x ***
that is true. but standard form is
Ax + By = C
where, if at all possible, A, B, and C are integers, and A is non-negative, and, A, B, and C have no common factors other than 1

in other words, start with y=-x +3 (this is slope-intercept form)
add +x to both sides to get

x+y = 3

(this matches Ax + By = C, with A=1, B=1 and C=3 )

Answer 15

i think i understand the concept when you guys put it like that thank you all

Answer 16

Np :) do you still need help with the problem regarding points b and c?

Answer 17

what about the second one ??

Answer 18

yeah plx

Answer 19

Point B:___(-3, 0)___
Point C:___(-1, -4)___

first, find the slope. Do you know how to do that ?

Answer 20

let me think one sec plx

Answer 21

slope is change in y divided by change in x
find "change in y"
then find "change in x"
then write the fraction

Answer 22

-2

Answer 23

yes. I assume you can "show your work", which is (0- (-4)) / (-3 -(-1)) = 4 / -2 = -2

Answer 24

Yup. Now if you fill out a T chart, you can figure out what the y-intercept is.

Answer 25

-6

Answer 26

now all you have to do is fill in your data where the variables are
y=mx+b
y=-2x-6

Answer 27

oh ok so through all does steps showed how we got y=-2x-6

Answer 28

yup

Answer 29

let me try to right it out how it would look one sec

Answer 30

ok got it thx

Answer 31

to find the equation use
y - y0 = m(x - x0)
where (x0,y0) is a point on the line. If you pick point B
Point B:___(-3, 0)___
then x0= -3 and y0= 0
(and m is the slope= -2)

y - 0 = -2(x - (-3))
y = -2x - 6

Answer 32

well that sums stuff up

Answer 33

thx again have nice day

Answer 34

have a nice day too c: let me know if you need anymore help since we might be covering the same material

Answer 35

ok ttyl