Graphs of rational functions: zeros | High School Math | Khan Academy
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- čas přidán 10. 03. 2016
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Sal picks the graph that matches f(x)=(2x²-18)/g(x) (where g(x) is a polynomial) based on its zeros.
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Watched, ty!
thanks
I don't understand why is C not correct. If it was (2(x+3)(x-3)/((x-3)(x+2)) wouldn't that exist an asymptote at x = -2?
for f(x), when x = -3, the value is going to be 0.
for C:
when x = -3, it clearly shows that f(x) is not equal to zero, and thus is incorrect.
Why is (x+1) not a V.A. ?
The is hole there not v.a