Set each piece = to 56, assuming that the 2 variables for which you are not solving are each equal to 0.
7x -2(0)-14(0) = 56
7x=56 (divide each side by 7)
X = ?
(__, 0, 0)
7(0) - 2y - 14 (0) = 56
-2y = 56 (divide each side by -2)
Y= ?
(0, __ , 0)
7(0) - 2(0) - 14z = 56
-14z = 56 (divide each side by -14)
z = ?
(0, 0, __)
The answer is 1 and 7/8, all you have to do is turn the 3/4 into eighths.
y = a ( x - h)^2 + v
a is positive when the parabola opens up and negative when it opens down.
Order from lest to greatest -5/6, -7/10, -3/5.
Check the picture below.
recall that a solution is where both graphs meet.
