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Answer:
y = -2x² - 12x - 19
Convert to vertex form by completing the square:
19 = -2x² - 12x
19 -18 = -2(x² + 6x + 9)
1 = -2(x + 3)²
y = -2(x + 3)² -1 Use this form to find the vertex and points:
Points:
X Y
-----------------------
-6 -19
-5 -9
-4 -3
-3 -1
-2 -3
-1 -9
0 -19
**Graph is below**
Answer:
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Step-by-step explanation:
Answer:
--3 ±sqrt((-3)^2 -4(4)(-9))
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2(4)
Step-by-step explanation:
4x^2-5=3x+4
We need to get this in standard form to answer the question
Subtract 3x from each side
4x^2-3x-5=3x-3x+4
4x^2-3x-5=+4
Subtract 4 from each side
4x^2-3x-9 =0
a = 4
b = -3
c = -9
-b ±sqrt(b^2 -4ac)
---------------------------
2a
--3 ±sqrt((-3)^2 -4(4)(-9))
-------------------------------
2(4)
Answer:
a * c^2 = b
Step-by-step explanation:
you would want to multiply both sides of the equation by c^2
a * c^2 = b
That gets you this formula you can then plug your numbers in
I don’t even know , ion understand