The graph of the function
is
- concave upward, when

- concave downward, when

Find 
1.

2.

Now:
1. when
the graph of the function is concave upward and this is for

2. when
the graph of the function is concave downward and this is for

Answer:
75.751=75 751/1000
Step-by-step explanation:
The answer is c because that’s how much is 2 liters
(3, -10) and slope of 4
Write in point-slope form.
Formula:(y-y1)=m(x-x1)
(y-(-10))=4(x-3)
y+10=3x-12, distributive property
Solve for y
y=3x-22