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Helena's posts

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**BQ#7: Unit V: Difference Quotient + Tangent lines**

GRAPH

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**BQ #6: Unit U Concept Intro-8: Limits**

1.(a) What is continuity? Continuity is when a graph/function is predictable meaning you can tell where it's going. It is also where there are no breaks, no jumps, and no holes in the graph. A continuous graph can be drawn without lifting your pencil. Last...

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**BQ #3 Unit T Concepts 1-3**

How do the graphs of sine and cosine relate to each of the others? a) Tangent? Tangent's ratio identity is sin/cos. As cosine equals zero, tan is undefined meaning it will not touch wherever cosine equals zero. As sine equals zero however, tan will ...

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**B#5 Unit T Concept 1-3**

Why do sine and cosine NOT have asymptotes, but the other four trig graphs do? To have asymptotes your trig function has to be undefined at some point which is when the denominator equals 0. Sine and Cosine don't have asymptotes because when yo...

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**BQ#4 Unit T Concept 3**

Why is a "normal" tangent graph uphill, but a "normal" tangent graph downhill? If you take a look at the graph of tangent (top), the asymptotes starting from (0,0) are at pi and 3pi/2. These are also where cosine is zero and touches the x-axis. When rem...

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**BQ#2 Unit T: Concept 1**

How do Trig Graphs relate to the Unit Circle? a) Perio d- Why is the period for sine and cosine 2 pi, whereas the period for tangent and cotangent is pi? According to the unit circle, sin is positive in quadrants I and II whereas quadrants III and IV are...

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**Reflection #1: Unit Q Concept 5: Verifying Trig Identities**

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**SP#7: Unit Q Concept 2: Pythagorean/Ratio/Reciprocal Identities with SOH CAH TOA**

Please see my SP7, made in collaboration with Trisha M. , by visiting their blog here . Also be sure to check out the other awesome posts on their blog.

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