Pre-Calc Homework Solutions 420

# Pre-Calc Homework Solutions 420 - 420 Section 10.5 Graphing...

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Exploration 2 Graphing Rose Curves All graphs are drawn in the window [ 2 4.7, 4.7] by [ 2 3.1, 3.1]. 1. The graphs are rose curves with 4 petals when n 56 2, 8 petals when n 56 4, and 12 petals when n 56 6. n 56 2 n 56 4 n 56 6 2. 2 p 3. The graph is a rose curve with 2 ) n ) petals. 4. The graphs are rose curves with 3 petals when n 56 3, 5 petals when n 56 5, and 7 petals when n 56 7. n 56 3 n 56 5 n 56 7 5. p 6. The graph is a rose cuve with ) n ) petals. Quick Review 10.5 1. Slope 5 } 3 2 2 1 ( 2 2 4 2) }52 1, so y 2 4 52 1[ x 2 ( 2 2)] or y 52 x 1 2. 2. ( x 2 0) 2 1 ( y 2 0) 2 5 3 2 , or x 2 1 y 2 5 9. 3. [ x 2 ( 2 2)] 2 1 ( y 2 4) 2 5 2 2 , or ( x 1 2) 2 1 ( y 2 4) 2 5 4. 4. (a) No; y is a function of x and is not the zero function. (b) No; y ( 2 x ) 5 ( 2 x ) 3 2 ( 2 x ) 52 x 3 1 x 52 ( x 3 2 x ) ± y ( x ) (c) Yes; y ( 2 x ) 52 y ( x ) (see part (b)) 5. (a) No; y is a function of x and is not the zero function. (b)
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