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1. what is the end behavior of the exponetial function f(x)=3/2*(4/5)^x?

2. use a graph to determine if the exponential function g(x)=-6*5^x is positive or negative and increasing or decreasing

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  1. consider (4/5)^x
    For positive x's
    as x becomes larger , (4/5)^x gets smaller,
    e.g. (4/5)^25 = .003777893...
    as x gets smaller, (4/5)^x approaches 1
    e.g. (4/5)^(.000025) = .9999994421...

    for negative x's
    as x becomes more negative
    (4/5)^x gets larger
    e.g (4/5)^-25 = 264.6...
    so y = (4/5)^x looks like this:
    https://www.wolframalpha.com/input/?i=plot+y+%3D+(4%2F5)%5Ex+from+-10+to+10
    The f(x) = 3/2*(4/5)^x would simply be a vertical stretch by a factor of 1.5

    For the second make a sketch of y = 5^x
    then y = +6(5^x) would be a vertical stretch , but the graph would still be totally above the x-axis
    The y = -6(5^x) would reflect that on the x-axis, so what would it look like?

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  2. Can you check my answers
    1. what is the end behavior of the exponetial function f(x)=3/2*(4/5)^x?
    B
    2. use a graph to determine if the exponential function g(x)=-6*5^x is positive or negative and increasing or decreasing
    A

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  3. 2. use a graph to determine if the exponential function g(x)=-6*5^x is positive or negative and increasing or decreasing
    C

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  4. The answers for Lesson 7: Graphing Exponential Functions
    27.0990002 Algebra 1 B (EOC 20) Unit 2: Exponents and Exponential Functions are
    1. c
    2.c
    3.a
    4.d
    5.c
    6.b

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  5. nunya is correct except number one is b

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  6. Aaron is correct, number 1 is b, everything else nunya got correct

    .b
    .c
    .a
    .d
    .c
    .b

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  7. Thanks guys!

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