19 x 1 = 19 and 1 x 19 = 19
Answer: 
Step-by-step explanation:
The equation of ab line that passes through two points (a,b) and (c,d) is given by :-

From the given picture , the line is passing through points (0,3) and (3,2).
Then, the equation of the line will be :-



Hence, the required equation of the line that represents the graphed function :
For this case we first write the equation of which we will use:
I (db) = 10log (l / l)
We substitute the value of l.
We have then:
l = 10 ^ 8lo
Substituting in the given equation:
I (db) = 10log ((10 ^ 8lo) / lo)
Rewriting:
I (db) = 10 * log (10 ^ 8)
I (db) = 80
Answer:
I (db) = 80
option 4
Answer:
4 and 5 hope this helps
Step-by-step explanation: