SOLUTION: how do you graph {{{y = -2*5^x}}} ?

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Question 114048This question is from textbook Algebra 2
: how do you graph y+=+-2%2A5%5Ex ? This question is from textbook Algebra 2

Found 2 solutions by Edwin McCravy, simpo07:
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
how do you graph y+=+-2%2A5%5Ex ?
Let x be -3, then y+=+-2%2A5%5E%28-3%29+=+-.016
So plot the point (-3,.016)
Let x be -2, then y+=+-2%2A5%5E%28-2%29+=+-.08
So plot the point (-2,.08)
Let x be -1, then y+=+-2%2A5%5E%28-1%29+=+-.4
So plot the point (-1,.4)
Let x be 0, then y+=+-2%2A5%5E%280%29+=+-2
So plot the point (0,-2)
Let x be 1, then y+=+-2%2A5%5E%281%29+=+-10
So plot the point (1,-10)
Let x be 2, then y+=+-2%2A5%5E%282%29+=+-50
So we would plot the point (2,-50) if we
had big enough graph.
Draw a smooth line through those points and
it will look like this:
graph%28500%2C468.75%2C-5%2C5%2C-25%2C5%2C-2%2A5%5Ex%29
Edwin

Answer by simpo07(1) About Me  (Show Source):
You can put this solution on YOUR website!
edwin i am sorry to say you have got th right idea but u carnt do simple maaths
-2.5^0=-1
-2.5^1=-2.5
-2.5^2=6.25
etc.