Graph y=3tan(x)
Problem
Solution
Identify the parent function and its properties. The parent function is
y=tan(x) which has a period ofπ and vertical asymptotes atx=π/2+n*π for any integern Determine the transformation applied to the parent function. The coefficient
3 iny=3*tan(x) represents a vertical stretch by a factor of3 Find the asymptotes for the transformed function. Since there is no horizontal shift or change in period, the vertical asymptotes remain at
x=−π/2 x=π/2 x=(3*π)/2 and so on.Identify key points within one period, typically
(−π/4,π/4) Fory=3*tan(x) whenx=π/4 y=3*tan(π/4)=3*(1)=3 Whenx=−π/4 y=3*tan(−π/4)=3*(−1)=−3 The x-intercept remains at(0,0) Sketch the graph by plotting the points
(−π/4,−3) (0,0) and(π/4,3) then drawing the characteristic tangent curves approaching the vertical asymptotes.
Final Answer
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