Ontario · Grade 9 (MTH1W, de-streamed)
MTH1W.C4.2
Grade 9 de-streamed — Graph relations of the forms x = k, y = k, x + y = k, ax + by = k and their associated inequalities, and identify the points and regions they define.
A note on this mapping: MTH1W graphs the region of a single inequality; the intersection of two regions as a system is Grade 11 and beyond, so the tag covers the half-plane half of this skill.
The skill that covers it
What a student should be able to do
- Decide whether a point is a solution of a linear inequality in two variables, or of a system.
- Match a shaded graph to its inequality, choosing the boundary style and the side to shade.
- Describe the solution region of a system of two linear inequalities.
- Write a system of inequalities from the constraints of a word problem.