Foundational Review
📋 What it is
Revisit the core function ideas and how they link: rule, table, graph, expression.
🗣️ Coach says
Review ties the four views together: a function is a rule, and that same rule shows up as a table, a graph, AND an expression. When you can jump between all four, you truly understand the function.
🧠 Memory hook
Rule = table = graph = expression. Four views of the SAME function — learn to switch between them.
😂 Giggle
Why did the variable feel free?
Because it could be ANY number it wanted!
😲 Whoa!
Being able to move between a table, a graph and a formula is exactly what separates confident maths students from stuck ones.
✅ Quick check: A table, a graph, and the formula y = 2x all describe one function. Are they the same or different?
Say your answer out loud first — then reveal.
The same function — just shown three different ways.
Table, graph and formula are three representations of one rule.
🧪 Try it! (2 minutes)
Take "y = x + 2" and make its table AND its graph. Same function, two views.