In the quadratic equation y = ax² + bx + c, the axis of symmetry can be determined with
x = -b/2a
Solution:
Identify the coefficient of the quadratic equation y = 3x² - 6x - 4
a = 3
b = -6
c = -4
The axis symmetry will be
x = -b / 2a
x = -(-6) / 2(3)
x = 6/6
x = 1
The axis of symmetry is x = 1
Answer: the amount of the item would be 23.08
Step-by-step explanation:
a 35% discount for a item with original price of $35.50 is equal to $12.42
The second one, because negative times negative equal to positive, -2(-y)= 2y
Let's simplify step-by-step.
2
z
−
4
−
z
=
2
z
+
−
4
+
−
z
Combine Like Terms:
=
2
z
+
−
4
+
−
z
=
(
2
z
+
−
z
)
+
(
−
4
)
=
z
+
−
4