The correct answer is B) The set of all first elements of the function. Let's say you had these three points on a graph of a function: (0.9), (2.6), (4,7). The domain of these three points would be (0,2,4). The domain is just the input for which the function is defined. Hope this helps.
The one with the fraction in the parenthasees
remember
F=P(r)^t
in decay, r<1
in growth, r>1
and r is positive so we don't have wierd fliping values
answer would be f(x)=4(0.25)^x
2nd one is answer
9÷√18 in simplified form gives me 9÷3√2. You cannot have a square root in the denominator so multiply both numerator and denominator by √2 which results in 9√2÷3√2*√2= 9√2÷6 and simplified to 3√2 ÷2
