Solving Simultaneous Equations Graphically 

You will don't worry

word

BOOOOOMMMMMMMMMMMMMEEEEEEEEEEEEEEEERRRRRRRRRRRRRRR LANGUAGE!!!!!!!!!!!!!

Annonymous 363 idk either like I’m just stuck I think this is too hard for a 12 yr old...😐😶

@@ellishines9833 Let's look at the first example, for linear equations. The word linear is very important. y = x + 2 Think about this linear equation: if you think about it, it doesn't matter what x is, all we need to know is what kind of line this equation describes. Here, it states that whatever x is, add 2, and you get where y will be. Thus, we draw a table showing what would happen if x were 0, 1, and 2. This allows us to draw the line on a very simple Cartesian plane. x | 0 | 1 | 2 y | 2 | 3 | 4 Remember to try and read it like a map: "wherever x is, y is + 2 of it's location." Therefore, the variables on the simple graph in linear equations.

@@PsychonautTV legend. So it doesn't matter what numbers we pick for x as long as they're in the graph?

@@PsychonautTV bro I'm still stuck I've no idea how u pick up values for the table

@@kaj0k979 i think so, my teacher said "feel free to choose whichever coordinates"

just pick randomly, it doesn't matter which number you are choosing. Graph is always gonna be right, as long as you find the correct value of y, by predicting x value...

in 7 minutes lol

@@aisha7408 bruh a year later 😂😂

@@lefty. Lol

Ello

Hello!

yes

yeah ikr

multiply -1 to 2= -2. -2+5=3. So on and so forth

ye I know I don't get that either I think you just pick them randomly as long as they are on the graph

Itz Jammyツ :0 ohhh thanks a lot u saved my a$$ I have assessment test tom qwq

it depend on how big the values are on the graph, for both x and y axis.

You can start where you like. The exam will most likely tell you what values to use.

+delicia dilaurentis no - any question should tell you the X values to use or give you the grid.

But the questions am seeing in my text books are not giving any range of values for x

Hsauce put your -1 in brackets then square it. Eg (-1) squared=1, 1-2=-1

you put the number in brackets then square it. got it now. still failing my mocks.

Just to be clear, the intersection is the solution to simultaneous equations.

You can pick any three x values to draw the straight line

Maths Genie so like any numbers 1,2,3 coz my teacher said you have to choose carefully

Hsauce yeah, but personally i'd start from -3 to 3

@@PO1S0N-1 This is hella late but the reason he chose -1, 0 and 1 was because if he chose 0,1 and 2 again then 2 would have taken it off the graph because it adds to 9 and the graph didn't show 9.

@@byronwolf8692 jesus christ 1 year ago, cheers anyways

because when you're doing a quadratic it makes a curve and if you don't have enough sides then you can't complete the curve correctly

built different