Answer: 
Step-by-step explanation:
1. By definition, the equation of the line has the following form:

Where <em>m</em> is the slope and <em>b</em> is the y-intercept.
2. Keeping the information above on mind, you the problem says that the slope is 11 and the y-interecept is -2, then:

3. Substitute these values into the equation of the line and you obtain that the equation of that line is:
Answer is 7.66"or 7.7"
cos40=x/10
calculate # 10*cos40
*note .. in your calculator don't forget to 'Degree'
[calculate]
10*cos40
answer is 7.7"
Using the Pythagorean theorem 4 would be the height and 8 would be the hypotenuse, you need to find the base
4^2 + X^2 = 8^2
16 x x^2 = 64
x^2 = 64-16
x^2 = 48
x = sqrt(48) = 6.92 feet ( round answer as needed )
-1/3b = 9.....multiply both sides by -3, cancelling out the -1/3 on the left side
b = 9 * -3
b = -27