3. graph the function and identify the vertical asymptote. y=1/x-4-2 4. graph the function and identify the vertical asymptote. y= 1/x+2+4

I can't do much graphing on here but the first equation has a vertical asymptote at x = 4. You get this by taking the denominator (x - 4) and setting it equal to zero. The answer x = 4 will be the asymptote.
The second equation will have a vartical asymptote at x = -2.
Again taking the denominator (x + 2) setting it to zero and solve. x = -2 will be the solution ans the asymptote.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.