Question 3 and 4

If you can answer and provide a reason for your answer choice.

Table on the left is a function

Table on the right is NOT a function

Step-by-step explanation:

Table on the left: we can see that for different elements/values in the Domain there is a single corresponding value in the range. Then it satisfies the condition for a function.

Table on the right: we notice that for the same element in the Domain (-6) there are three different corresponding values in the Range. Something similar occurs for the element "1"  (there are two different elements in the Range this value connects to). This doesn't satisfy the conditions for this relationship to be a function where each element in the Domain should connect to only one element in the Range.

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)