Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Slope Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (4, 6)
Point (0, 8)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:

- Subtract:

- Simplify:

Area = length * width = 4x * x = 4x^2.
4x^2 = 80
x^2 = 80/4 = 20
x = sqrt 20
Answer is 4.47 to nearest hundredth.
I'm pretty sure the answer is D. 0.9196