Answer:
1300
Step-by-step explanation:
6300
-3200=
1300
Answer: 20
Step-by-step explanation:
Let 's complete our quadrilateral to a rectangle ; and subtract from it the area highlighted in red

Average rate of change implies the quotient f(4)-f(a)/4-a which equals (1/2-a/2)/4-a=(1-a)/(8-2a) on (4,a)
Neither point is on either function.
f(x) reflected over the x-axis is
y=-10 + x