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For each of the following functions, give the domain and a description of the graph y =f(x)in the xy-plane, including its shape,
For each of the following functions, give the domain and a description of the graph y =f(x)in the xy-plane, including its shape,
admin
2018-12-14
24
问题
For each of the following functions, give the domain and a description of the graph y =f(x)in the xy-plane, including its shape, and the x- and y-intercepts.
(a)f(x)= -4
(b)f(x)= 100 - 900x
(c)f(x)= 5-(x + 20)
2
(d)f(x)=
(e)f(x)= x+|x|
选项
答案
(a)Domain: the set of all real numbers. The graph is a horizontal line with y- intercept -4 and no x- intercept. (b)Domain: the set of all real numbers. The graph is a line with slope -900, y- intercept 100, and x-intercept 1/9. (c)Domain: the set of all
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