Answer:

Step-by-step explanation:
<u>Step 1: Write the equation in point-slope form</u>
Point Slope Form: 
<u>Plug in the numbers and solve</u>
<u />



Answer: 
The formula for slope is (y-y1)/(x-x1).
1 = x
-1 = y
-2 = x2
8 = y2
You would plug those into the formula: (-1-(-2))/(-1-8) and that would equal to: 1/(-9).
Answer:
you must use alltitude or hight
Step-by-step explanation:
Altitude or height
Answer:
c = 
Step-by-step explanation:
Given
R= 
Clear the radical by squaring both sides
R² = b² - 4ac ( subtract b² from both sides )
R² - b² = - 4ac ( multiply all terms by - 1 )
b² - R² = 4ac ( divide both sides by 4a )
= c
This would be 12 - 12*cos(30) = 12 - 6

= 1.608 ft off the ground.