Homework Help: Algebra

Posted by Lynn B. on Sunday, June 13, 2010 at 7:28am.

Please help!
Evaluate the exponential equation for three positive values....?
Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work

y=(1/4)^x+3

Algebra - Reiny, Sunday, June 13, 2010 at 10:03am
I will give you 1 positive x example and 1 negative x example, you can try some others

let x = +2
y = (1/4)^2 + 3
= (1/16) = 3
= 1/16 + 48/16 = 49/16

let x = -3
y = (1/4)^-3 + 3
= (4)^(+3) + 3
= 64 + 3 = 67

of course if x = 0
y = (1/4)^0 + 3
= 1+3 = 4

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