Choosing a Systems MethodGraphing, substitution or elimination — decided by the shape of the equations.9th GradeAll three methods find the same point. Which isquickest depends on how the equations are written.graph · substitute · eliminateOne variable already alonesubstitutiony = 2x + 1 is ready to substitute.Matching or opposite coefficientselimination2x in both means they cancel by subtracting.Both in y = mx + b formgraphingQuick, but only exact if the crossing is on a grid point.Neithermultiply, then eliminateScale one equation until something matches.Always substitute your point into BOTH original equations. Checkingone proves nothing.Choosing a Systems Methodlearnposters.com
Choosing a Systems Method — printable math wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Choosing a Systems Method poster

The rule, 4 worked examples.

Always substitute your point into BOTH original equations. Checking one proves nothing.

Questions about the Choosing a Systems Method poster

What’s on the Choosing a Systems Method poster?
The rule, 4 worked examples. All three methods find the same point. Which is quickest depends on how the equations…; graph · substitute · eliminate; One variable already alone = substitution; Matching or opposite coefficients = elimination; Both in y = mx + b form = graphing; Neither = multiply, then eliminate. Always substitute your point into BOTH original equations. Checking one proves nothing.
Who is the Choosing a Systems Method poster for?
Choosing a Systems Method is filed under 9th Grade (ages 14–15), so it matches what that year asks a child to remember. It is equally useful to an older student revisiting math, and to the parent or teacher answering the question at the kitchen table.
When should you use the Choosing a Systems Method poster?
Look at the equations before choosing. The right method halves the work. A wall chart earns its place by being glanceable from where the work is happening, so Choosing a Systems Method belongs on the wall where that math work actually happens, within glancing distance, rather than filed away.
What other posters go with Choosing a Systems Method?
Absolute Value Equations, Arithmetic Sequences and Difference of Squares sit alongside Choosing a Systems Method in the 9th Grade set. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Absolute Value EquationsArithmetic SequencesDifference of Squares
Is the Choosing a Systems Method poster free to download and print?
Yes. Choosing a Systems Method downloads as a free PDF with no account, no email and no watermark, like everything else in the 9th Grade set. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Choosing a Systems Method poster print at?
Choosing a Systems Method is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Choosing a Systems Method loses nothing.Printing guide

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