The answer to your question would be 4hr I think 
        
             
        
        
        
Answer 10
This is the formula of an arithmetic sequence.
a
n
=
a
1
+
d
(
n
−
1
)
a
n
=
a
1
+
d
(
n
-
1
)
Substitute in the values of 
a
1
=
1
a
1
=
1
 and 
d
=
3
d
=
3
.
a
n
=
1
+
(
3
)
(
n
−
1
)
a
n
=
1
+
(
3
)
(
n
-
1
)
Simplify each term.
a
n
=
1
+
3
n
−
3
a
n
=
1
+
3
n
-
3
Subtract 
3
3
 from 
1
1
.
a
n
=
3
n
−
2
        
             
        
        
        
Hello There!
17/5 = 3.4
3.4 x 6 = 20.4
k = 20.4
Hope This Helps You!
Good Luck :) 
- Hannah ❤
        
                    
             
        
        
        
The absolute minimum of this graph is y=-10