Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = –2x2 + 6x – 1.
1 answer:
Answer:
The answer to your question is x = 1.5 Vertex = (1.5, 3.5)
Step-by-step explanation:
Data
Function
y = -2x² + 6x - 1
Process
1.- Find the canonical form of the equation
y = -2x² + 6x - 1
y + 1 = -2x² + 6x
y + 1 = -2(x² - 3x )
y + 1 - 18/4 = -2(x² - 3x + 3/2²)
y - 7/2 = -2(x - 3/2)²
2.- Find the vertex
(3/2, 7/2) = (1.5, 3.5)
3.- Find the axis of symmetry
The axis of symmetry is the "x" coordinate.
axis of symmetry = 1.5
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Answer:
B. (1,-8)
Step-by-step explanation:
Slope of the first one:
(-6-0)/(0--3) = -6/3 = -2
y = -2x - 6
3y + 30 = 6x
y + 10 = 2x
-2x - 6 + 10 = 2x
4 = 4x
x = 1
y = -2(1) - 6
y = -8
Answer:
x = 12
Step-by-step explanation:
Because if you multiply 3 and 4 its 12 Which makes the answer 12
Answer:
x=0
Step-by-step explanation:
Your answer would be- 5 7/8 as an improper fraction is 47/8