Question

graph the system of equations. How many solutions exist for this system of equations.

Answer 1

so, where are they?

Answer 2

me

Answer 3

you said, "graph THE system of equations", which one?

Answer 4

this
y=3x-9
and y=-1/3x+3

Answer 5

they are orthogonal lines, so how many times do they cross?

Answer 6

orthogonal = perpendicular

Answer 7

? i don't get how do graph them

Answer 8

pick any two points for each, and plot that

Answer 9

do you know how to find the y intercept and the x intercept?

Answer 10

that is what i have to choose from
a.) The system has one solution.
b.) There are no solutions to the system.
c.) There are an infinite number of solutions

Answer 11

I am really bad at math

Answer 12

so, just pick any two points for one, plot them on the cartesian plane, do the same for the other, they're both a line, so, all you need is 2 points for each

Answer 13

so the right one would be A i think

Answer 14

the right one... as opposed to the left one? did you graph them?

Answer 15

yes but i don't get it i think i did it wrong

Answer 16

I mean a.) The system has one solution.

Answer 17

well, when you have 2 functions, and "x" and "y" in both
usually means, that the "x" and "y" above and below have the same value, or are the same

if x = 3 above
x= 3 below too

a "solution" graphically occurrs, when "x" and "y" have the same value or are the same for both graphics/lines, that is, WHERE they intersect, at that point, "x" and "y" are the same for both

so, take a peek at your plotted graph, do they touch each other? more than once? not at all?

Answer 18

I think they touch once

Answer 19

where? at what coordinates? (x,y)

Answer 20

x

Answer 21

and what's the value of "x" there?

Answer 22

3

Answer 23

and "y"?

Answer 24

3

Answer 25

meaning you haven't done the plotting :/

try plotting them here -> http://www.fooplot.com/

Answer 26

see if they intersect, once, more than once, not at all

Answer 27

i don't know how to plot the
Y=3x-9
y=-1/3x+3

Answer 28

you give a value to "x", say 10, so y will be = 3(10)-9 = 30-9 = 21

Answer 29

"x" is INDEPENDENT to get any value pretty much, "y" is DEPENDENT on whatever "x" gets for its value

Answer 30

i still don't think i am doing it right on the fooplot

Answer 31

at fooplot all you do is, type it in

Answer 32

the whole thing

Answer 33

http://www.fooplot.com/#W3sidHlwZSI6MCwiZXEiOiIzeC05IiwiY29sb3IiOiIjMDAwMDAwIn0seyJ0eXBlIjowLCJlcSI6Ii0xLzN4KzMiLCJjb2xvciI6IiMwQTBCMkUifSx7InR5cGUiOjEwMDB9XQ--

Answer 34

thanks

Answer 35

they touch almost on 2

Answer 36

and they only touch once

Answer 37

thank you
:)