Solve the following system by graphing. Check your solution.
a) 3x + y = 5
-x + 3y = -15

Question

Solve the following system by graphing. Check your solution. 
a) 3x + y = 5 
-x + 3y = -15

misty1212 · Answer

HI!!

shelby1290 · Answer

hey

misty1212 · Answer

does it really say "solve by graphing"?

shelby1290 · Answer

yes lol

misty1212 · Answer

a lousy method, but it is certainly easy using the computer

misty1212 · Answer

misty1212 · Answer

you can see that they intersect at the point $(3,-4)$ 
there are lots of simpler ways to do it though

shelby1290 · Answer

yea i've been trying https://www.desmos.com/calculator but idk how they got (3,-4)

misty1212 · Answer

use wolfram
see how easy it was?

shelby1290 · Answer

i think the graph on my worksheet is too small to draw on

misty1212 · Answer

what does it look like?

shelby1290 · Answer

i'll take a picture of it 
brb one sec

misty1212 · Answer

shelby1290 · Answer

attachment

shelby1290 · Answer

@misty1212 that's what it looks like ^

misty1212 · Answer

they did not leave you a lot of room did they?

misty1212 · Answer

type them both in to desmos if that is what you want to do, then copy on to your graph

shelby1290 · Answer

not at all lol

misty1212 · Answer

when i sent the desmos link it did not include the graphs, you have to type them in

misty1212 · Answer

but they will definitely intersect at $(3,-4)$

shelby1290 · Answer

okay that's fine i'll just make do and fill in the points myself

misty1212 · Answer

good idea!

shelby1290 · Answer

desmos has a feature where you can click the line and to tell what the exact point is

shelby1290 · Answer

but thank you