Answer:
vertex = (- 1, - 4 )
Step-by-step explanation:
Given a parabola in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
x = - 
y = x² + 2x - 3 ← is in standard form
with a = 1, b = 2 , then
x = -
= - 1
Substitute x = - 1 into the equation for corresponding value of y
y = (- 1)² + 2(- 1) - 3 = 1 - 2 - 3 = - 4
vertex = (- 1, - 4 )
20% Because $18.00 - $14.40 = $3.60
3.6/18 = 0.2 ---> 20%
712 is the answer of this question
No, a line of symmetry should cut the shape or object in half and represent a perfect mirror image.
Answer:
x = 12
Step-by-step explanation:
1 + 11 = 12, so x = 12. hope this helps