Can someone be so kind enough to explain 1, 4,5 from my homework?

1. Find the area (in square units) of the region under the graph of the function f on the interval

[1, 8], using the Fundamental Theorem of Calculus. Then verify your result using geometry. f(x) = 7

6 Chrome File Edit View History Bookmarks Profiles Tab Window Help C\" C Chegg Search Section 6.4 , Math 116, sect X * Homework Help - Q&A from . C' webassignnet 4. [0/1 Points] | DETAILS ll PREVIOUSANSWERS I TANAPCALC106.4.009.MI. Find the area (in square units) of the region under the graph of the function fon the interval [1, 7]. f(X) =1 X 1.946 square units x Need Help? 5. [-/1 Points] TANAPCALC106.4.016.MI. Find the area (in square units) of the region under the graph of the function fon the interval [3, 4]. f(x) = Sexx square units Need Help? 6. [1" Points] DETAILS PREVIOUS ANSWERS TANAPCALC10 6.4.025. Evaluate the definite integral. 0 MY NOTES l PRACTICEANOTHER MY NOTES PRACTICE ANOTHER