
Find f(-3) for f(x) = 4(2)^x
((−3)(4))(2)
=(−12)(2)
=−24
The answer is 0.305. All you have to do is move the decimal place three times to the left.
-4+5 equals 1 because on a number line -4 is left of 0, and positive 5 is right of 0. So therefore moving from -4 5 spaces right would put you at (pos) 1.