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insens350 [35]
2 years ago
8

The standard for of the equation is y=7x^2+14x+4. What is the vertex form of the equation

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
8 0

Answer:

7(x+1)^2 - 3

Step-by-step explanation:

To Write in The Vertex Form Simply means expressing the equation using completing of the square method

step 1: Make the coefficient of x^2 to 1

7 [x^2 + 2x + 4/7]

step 2: express the coefficient of x as half's of positive and negative

7 [x^2 + 2x + (1)^1 - (1)^1 + 4/7]

step 3: separate the negative part and the constant to solve then correct x^2 and 1^2 together

7 [ (x+1)^2 -3/7 ]

step 4 : distribute the 7

7(x + 1)^2 - 3

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What is the y-coordinate of the solution for the system of equations? x−y=−11 y+7=−2x
ICE Princess25 [194]

Answer:

y= 5

Step-by-step explanation:

Given the system of equations:

x-y=-11

y+7=-2x

In order to find the y coordinate of the solution we must first find the solution to this system of equations. We first start by solving one of the given equations and then substitute the answer of that into the second equation and further solve to get the final answers.

x=y=-11

y+7=-2x

y+7=-2x

+ -7

y = -2x - 7

x - y = -11

y = -2x-7

x-(-2x-7)=-11

x--2x=x+2x=3x

3x+7=-11

-7

-11+-7=-18

3x=-18

\div3

-18\div3=-6

x=-6

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y=(-2)(-6)-7

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y=5

Hope this helps.

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