Exam Tips

L2MAEL

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This exam is about either tracing, or making your own paths of an image/map using mathematical graphs, and explaining them in words. Normally you are allocated up to three hours for this exam. I ran out of time myself (but I still got excellence L), because drawing them took ages.

Must talkabout(s) in the exam:

You should talk about minimum three of these in the exam (go with four/five as safety).

1. Domain “$x$” The set of possible $x$-values which are valid for the context

2. Range “$y$” The set of possible $y$-values which are valid for the context

3. Symmetry (if any) Describe any reflection lines i.e. give the equation of lines of symmetry

4. Turning/inflection points (vertex), local max/min points (if any) State any stationary point and give their coordinates

5. Intercepts (if any) Write down the values of the $x$ and $y$ intercepts. $y$-intercept at $(0,y)$ i.e. the value of $y$ when $x$ is 0. $x$-intercept(s) at $(x,0)$ i.e. the value of $x$ when $y$ is 0. schools normally don’t like it when the intercepts, or coordinates are like a never-ending decimal such as $(6.4869164511,10)$, and yes, I got flagged for it. when picking intercepts, try to use a good point (I refer to this as perfect points) like $(2,1)$.

6. Asymptotes (if any) An asymptote is a line (value) that approaches a curve (equation) but doesn’t get to. E.g. $x$ value causes the equation to divide by zero. If there are asymptotes, write down their equations.

EDIT: You also have to talk about why you have used them. For example, if you were to trace this path: You could say that: “Since this path has a wave-looking shape, I could use a sine graph since sine graphs also have a wave-looking graph.”

Use graph created below to find all the MRT/EXC criteria: https://www.desmos.com/calculator/hwiengmumv