Question

solve the following simultaneous equations using graphical method:
(7) x+4y=12
4x+y=18

Qno.(4) 4x+y=2
4x+y=-3

Answer 1

@dan815 @alekos @TheSmartOne @freckles @uri @OwlGirl212 @iambatman

Answer 2

are you solving the system of equations or solving for x?

Answer 3

@Nurali @nincompoop @nickmeneses1997 @Emmanuel11 @Scotty4life

Answer 4

for find the value of x and y?

Answer 5

it looks like you have two questions there, is that right?

Answer 6

yes 4 and 7 first i want to solve first one...!

Answer 7

ok so to solve this graphically you need to do it by hand or use a graphing calculator, graph both lines, at the point where they intersect is the solution it will be at some (x,y) coordinate that they intersect

Answer 8

are you allowed to use a graphing calculator?

Answer 9

no .. i want to solve without calculator

Answer 10

ok so can you graph those lines?

Answer 11

by hand?

Answer 12

yes by hand?

Answer 13

yes graph the lines by hand, observe what (x,y) coordinate they intersect at, that is the solution

Answer 14

first we find the value of x and y,,,,,how?

Answer 15

Here's a graph if you need one:

Answer 16

it may be easiest if you convert the equations to slope intercept form, y = mx+b before graphing

Answer 17

you actually dont need to though

Answer 18

give me an x value and a y value that will make this equation true

x + 4y = 12

Answer 19

ill give you one, how about x = 8 and y = 1, 8 + 4(1) = 12

Answer 20

can you give me another one?

Answer 21

i want to retell the first one in this way.... if x=0 and y=12/4=3

Answer 22

not sure what you mean by that

Answer 23

@wolf1728 i make this question by graph calculator as give below
oooops.....my copy pasting is not working

Answer 24

x +4y =12 we find the value of y , whats the answer of y?

Answer 25

oh so you want to solve for y?

Answer 26

ok so you want to isolate y on one side of the equation

Answer 27

yes for x and y..

Answer 28

@wolf my computer is not working as pasting???

Answer 29

ziqball103 You have to use the attach file button

Answer 30

doing copy but not pasting? i want to show you graph calculator how i paste link ???

Answer 31

@ziqbal103 if you want to solve for x and y for that system graphically, you must graph them, thats what graphically means

Answer 32

i thing my windows dissapear that's why i cann't paste my link @ wolf

Answer 33

You are trying to paste a link? CAn you just graph the equation on your own computer?

Answer 34

@billj5 find the value of x and y

Answer 35

@ziqbal103 i dont know what to tell you, you arent listening to what im saying

Answer 36

ok

Answer 37

@ziqbal103 if you come back, msg me and we can work through this problem