Asked by Mitch n' Joey
Graph y=5^x and y=log_5 x on a sheet of paper using the same set of axes. Use the graph to describe the domain and range of each function. Then identify the y-intercept of each function and any asymptotes of each function.
So far I have:
Y=5^x :
D: ??
R: y>0
Y-intercept: 1
Asymptotes: y=0
__________________________________
Y=log_5 x :
D:??
R:??
Y-intercept: none
Asymptotes: x=0
can anyone tell me if this is correct? Or help me find out how to do the other parts that I was not able to find out? Thank you so much!!
So far I have:
Y=5^x :
D: ??
R: y>0
Y-intercept: 1
Asymptotes: y=0
__________________________________
Y=log_5 x :
D:??
R:??
Y-intercept: none
Asymptotes: x=0
can anyone tell me if this is correct? Or help me find out how to do the other parts that I was not able to find out? Thank you so much!!
Answers
Answered by
Steve
the domain of all exponentials is (-∞,∞)
and the range is (0,∞)
For logs, they are reversed, since it is the inverse function.
exponentials all pass through (0,1)
logs all pass through (1,0)
your asymptotes are also correct.
and the range is (0,∞)
For logs, they are reversed, since it is the inverse function.
exponentials all pass through (0,1)
logs all pass through (1,0)
your asymptotes are also correct.
Answered by
Mitch n' Joey
So for the first one:
Domain: (-∞,∞)
Range: (0,∞)
Y-intercept: 1
and for the second one:
Domain: (∞,-∞)
Range: (∞,0)
Y-intercept: -1
this is what I understood from your response?
Domain: (-∞,∞)
Range: (0,∞)
Y-intercept: 1
and for the second one:
Domain: (∞,-∞)
Range: (∞,0)
Y-intercept: -1
this is what I understood from your response?
Answered by
Steve
No, for logs, you have
Domain: (0,∞)
Range: (-∞,∞)
x-intercept: 1
Take a look at the graphs, fer pete's sake!
Domain: (0,∞)
Range: (-∞,∞)
x-intercept: 1
Take a look at the graphs, fer pete's sake!
Answered by
Pete
yeah! for my sake!
Answered by
Carl
why not my sake? >:(
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