Question

Algebra 2. Fan and Medal

Answer 1

question?

Answer 2

lol you want us to do it for you

Answer 3

why not?

Answer 4

No. You dont have to. I just didnt understand it and I need help.

Answer 5

to find the equation of the line between the points \((0,3)\) and \((1,2)\) you need the slope

Answer 6

so i would use y=mx+b?

Answer 7

right one, down one means the slope is \(-1\)
since it goes through the point \((0,3)\) you know the \(y\) intercept is \(3\) making your equation
\[y=-x+3\]

Answer 8

yes, \(y=mx+b\) with \(m=-1,b=3\)

Answer 9

oh damn they said "standard form" hold the phone

Answer 10

so it would look like y=(-1)x+3?

Answer 11

\[y=-x+3\\
x+y=3\] second one is standard form

Answer 12

yes, it is \(y=(-1)x+3\) but if you write it that way, displaying the \(-1\) your teacher will think you are an idiot, so don't do it, just write \(y=-x+3\) then change it to \(x+y=3\)

Answer 13

lol alright. Sorry I suck at math D:

Answer 14

yeah its okay just don't put a 1 or a -1 in front of anything
wanna do the second one?

Answer 15

Yes please

Answer 16

points are \((0,3)\) and \((-3,0)\) slope is
\[\frac{3-0}{0-(-3)}=\frac{3}{3}=1\]

Answer 17

again the point \((0,3)\) tells you the \(y\) intercept is \(3\) so write
\[y=mx+b\] with \(m=1,b=3\)

Answer 18

but whatever you do, do not write
\[y=\color{red}1x+3\] just write
\[y=x+3\]

Answer 19

thank you

Answer 20

yw
might as well finish them right?
\[(-3,0),(-1,-4)\] slope is
\[\frac{0-(-4)}{-3-(-1)}=\frac{4}{-2}=-2\]

Answer 21

this time you do not know the \(y\) intercept so you have to use the point - slope formula
\[y-y_1=m(x-x_1)\] with
\[x_1=-3,y_1=0, m=-2\]

Answer 22

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

Answer 23

yes, now lets clean it up

Answer 24

\[y=-2(x+3)\] would be the first step
then distribute the \(-2\) to finish

Answer 25

you should end up with
\[y=-2x-6\]
hope this was more or less clear
finding the equation of a line given two points is not too hard and a decent skill to have

Answer 26

You helped me alot. Gave me a better understanding. Thank you so much :)

Answer 27

yw