-Recap on linear graphs:

We learnt that:

- convert all equations to y = mx + c
- Visualise the gradient; increasing/decreasing
- X-intercept= -c/m
- Y-intercept is when x=o
- Do working step-by-step to prevent error and careless mistakes
- Substitute the given values of x and y values into y = mx + c if two variables are unknown.
- Gradient

= m

= rise/run

- It is the CHANGE IN Y-AXIS/ CHANGE IN X-AXIS
- Look at the slope; increasing or decreasing slope.
- Expansion of Quadratic Expressions:

We learnt that:

- expand a certain term

- write in alphabetical order
- convince that (a-b)2 = (a-b)(a-b) using expansion
- answers can leave in improper fraction unless state the co-efficient of the term.
- reduce to simpler form
- decimal is also possible
- did (a+b)2, (a+b)3 , (a+b)4 and so on as practice

Pascal Triangle:

- a shortcut way of attaining answers for quadratic expansion.
- Co-efficient of the number.

Question of the day:

How do you determine that the Pascal triangle is always correct and does it always give the exact co-efficient for all expansion of quadratic expressions? Is there a particular occasion when the Pascal triangle did not meet the co-efficient needed? In what circumstances? Examples is required.

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