Week13 in prec 11

This week we learnt the ch8 ABsolute value and Reciprocal Functions.

I think the most important thing in this topic is to find the part we need to “change”, it’s hard, but also easy when you can factor it practically.

In this two examples, one is the linear and the other is parabola. We need to change both of their negative part into positive , the point that change is the x-intercept , after we find the x-intercept ,we can change it. Remember what we change is absolutely symmetry to the origin part.

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