Ontario · Grade 9 (MTH1W, de-streamed)
MTH1W.C4.1
Grade 9 de-streamed — Compare the characteristics of graphs, tables of values and equations of linear and non-linear relations.
The 2 skills that cover it
- Graphs, Tables & EquationsMove fluently between the four faces of a function: equation, table, graph and words.Read the lesson →
- Quadratic Functions & ParabolasRead a parabola from its equation: find the vertex, the axis of symmetry and the zeros of y = ax^2 + bx + c, convert to vertex form by completing the square, and use the vertex to answer maximum and minimum questions.Read the lesson →
What a student should be able to do
- Build a table of values from an equation.
- Read a slope and intercept off a graph or a table.
- Match a graph to its equation.
- Describe a function in words from any representation.
- Find the vertex and the axis of symmetry of y = ax2 + bx + c.
- Find the zeros of a quadratic function and say where its graph crosses the x-axis.
- Complete the square to write a quadratic in vertex form, and read the vertex from it.
- Use the vertex to find the greatest height or the largest area in an application.