15. 16. 17. 18. 19. 20. 22. 23. Determine whether the graph below is that of a f

Question

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Determine whether the graph below is that of a function by using the vertical-line test. If it is, use the graph to find (a) its domain and range. (b) the intercepts, if any (c) any symmetry with respect to the x-axis, y-axis, or the origin. Ay -2.2) (2,2) -4 Is the graph that of a function? Yes If the graph is that of a function, what are the domain and range of the function? Select the correct choice below and fill in any answer boxes within your choice. A. The domain isThe range is (Type your answers in interval notation.) O B. The graph is not a function.

Explanation / Answer

15) the graph is a function as it passes vertical line test

domain is ( - infinity , + infinity )

range is ( - infinity , 2 ]

x intercepts are ( -3,0 ) and ( 3 , 0 )

y intercept is ( 0 , 2 )

symmetery with respect to y axis

16) the function is of a graph as it passes vertical line test

domain is ( - infinity , + infinity )

range is [ -9 , infinity )

x intercepts are ( -1 , 0 ) and ( 5 , 0 )

y intercept is ( 0 , -6 )

not symmetric

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