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RSB [31]
3 years ago
15

Which graph models the function F(x)=-2(3)^x

Mathematics
2 answers:
grigory [225]3 years ago
4 0

Answer:

on my test it was graph A. but here are some coordinates too (-2, -0.222) ;

(-1, -0.667); (1, -6). the graph curves down and also hits point (0, -2) hope this helps :)

Step-by-step explanation:


andrey2020 [161]3 years ago
3 0

Answer:

Given the function: y= -2(3)^x                                .....[1]

An exponential function is in the form of y=ab^x.

  • If a< 0 and b <1, then the graph is increasing
  • If a< 0 and b >1 , then the graph is decreasing.
  • If  a> 0 and b<1, the the graph is decreasing.
  • if a< 0 and b > 1. then the graph is increasing.

From the given equation [1] we have;

Here, a = -2 < 0 and b = 3 > 1.

For this function, x-intercepts doesn't exist, as it does not crosses the x-axis graph.

y-intercept states that the graph crosses the y-axis.

Substitute value of x =0 in [1] to solve for y;

y = -2(3)^0

y = -2

y-intercept = (0, -2)

End Behavior of the given graph :

If x \rightarrow \infty , then f(x) \rightarrow -\infty

and

If x \rightarrow -\infty, then f(x) \rightarrow 0

Also, You can see the graph as shown below in the attachment.


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