It's a line in form y = mx.
Two points:
(0, 0) and (1, 4)
The formula of a slope:
Substitute:
Answer: 
Just divide the original cost for one pound by 4 for each meat.
4.25 divided by 4. if it makes it any easier, 425 divided by 400 because you just move the decimal over and you will get the same result.
2.85 (or 285) divided by 4 (or 400).
then add the original cost per pound for each and then subtract turkey from beef.
theta is in the fourth quadrant where the cosine is positive.
the third side in the triangle = sqrt (4 - 2) = sqrt2
So sin theta = -sqrt2/2 = Second choice (negative because sine is negative in 4th quadrant)
tan theta = - sqrt2 / sqrt2 = -1
1 stone = 20 square inches
1 stone * 30 = 20 square inches * 30
30 stones = 600 square inches
X + 19 >= 8.2
x >= 8.2 -19
>= -10.8
