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xdoran
25.07.2020 •
Mathematics
Which point on the graph of g(x)=(1/5)^x? HELPP
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Ответ:
(-1,5) and
are points on the graph
Step-by-step explanation:
Given
Required
Determine which point in on the graph
To get which of point A to D is on the graph, we have to plug in their values in the given expression using the format; (x,g(x))
A. (-1,5)
x = -1
Substitute -1 for x in![g(x) = \frac{1}{5}^x](/tpl/images/0713/1292/e2e91.png)
Convert to index form
Change / to *
This satisfies (-1,5)
Hence, (-1,5) is on the graph
B. (1,0)
x = 1
Substitute 1 for x
(1,0) is not on the graph because g(x) is not equal to 0
C.![(3, \frac{1}{125})](/tpl/images/0713/1292/002c8.png)
x = 3
Substitute 3 for x
Apply law of indices
This satisfies![(3, \frac{1}{125})](/tpl/images/0713/1292/002c8.png)
Hence,
is on the graph
D.![(-2, \frac{1}{25})](/tpl/images/0713/1292/f11cb.png)
x = -2
Substitute -2 for x
Convert to index form
Change / to *
This does not satisfy![(-2, \frac{1}{25})](/tpl/images/0713/1292/f11cb.png)
Hence,
is not on the graph
Ответ:
i have the same question
Step-by-step explanation: