Algebra

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Determine if the equation y = 2^x represents exponential growth or decay

I thought at first it was growth but now I think it might be decay because there is no "b" in a parentheses so do I assume b is less than 1 so it's decay?

• Algebra -

What happens if x > 1? What happens if x is negative or a fraction?

What does "b" have to do with this problem?

• Algebra -

A BALL REBOUNDS ONE-HALF THE DISTANCE THAT IT FALLS. IF THE BALL IS DROOPED FROM A HEIGHT OF 512 FEET,HOW HIGH DOES IT GO ON ITS EIGHT REBOUND.

• Algebra -

f(x)=14−0.5xf, left parenthesis, x, right parenthesis, equals, 14, minus, 0, point, 5, x
f(30)=f(30)=f 30
s

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