Answer:
vertex = (- 1, 3 )
Step-by-step explanation:
Given a parabola in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
= -
y = 2x² + 4x + 5 ← is in standard form
with a = 2, b = 4, then
= -
= - 1
Substitute x = - 1 into the equation for corresponding value of y, that is
y = 2(- 1)² + 4(- 1) + 5 = 2 - 4 + 5 = 3
vertex = (- 1, 3 )
Answer:
Step-by-step explanation:
Unit Rate is the ratio between two different quantities with different units
The ratio of cost per items is
4 pounds of apples 5
4 pounds 5
Divided 4 both the side
1 pounds of apples
1·25
pounds of cheese
3·50
pounds
3·50
Divided both the side
1 pounds of cheese
7
pounds of coffe beans
8·25
pounds
8·25
Divided both the side
1 pounds of coffee beans
5·5
pounds of fudge
6·75
pounds
6·75
Divided both the side
1 pounds of fudge
9
pounds of pumpkin is
5·50
pounds
5·50
Divided both the side
1 pounds of pumpkin
0·88