Marcel claims that the graph below represents a function.
y
4
3+
2+
-4 -3 -2 -1
-1+
1
+X
2 3 4
-2+
3-
-47
State whether Marcel is correct. Justify your answer.

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)

what statement? is there an image?

4.5%

step-by-step explanation: