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Veseljchak [2.6K]
3 years ago
7

Use the quadratic function f(x) = 2x2 + 4x +3 to answer the following questions.

Mathematics
1 answer:
GuDViN [60]3 years ago
8 0
The vertex is (-1,1)

Explanation

The vertex formula to find the x coordinate of the formula is -b/2a

So we plug in the values into the formula which is

-4/2(2)

Simplify it

-4/4
=-1
-1 is now the x cord of the vertex.

So now we will plug in the x into the quadratic equation which is 2x^2+4x+3

2(-1)^2 + 4(-1) + 3 = 2 -4 +3

Simplify it

5 - 4= 1

Y=1
So the Coordinates of the vertex is (-1,1)
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Answer:

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Step-by-step explanation:

\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}

(1, 3)    ⇒   x₁ = 1,  y₁ = 3

(7, 2)    ⇒   x₂ = 7,  y₂ = 2

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Step-by-step explanation:

Dividing by a fraction is the same as multiplying by the upside-down fraction.

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Step-by-step explanation:

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3 years ago
You deposit $20,000 in an account that pays 7.77% annual interest. Find the balance after 2 years when the interest is compounde
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Step-by-step explanation:

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Answer:

A x, y

Step-by-step explanation:

Hopefully this helps

7 0
3 years ago
Read 2 more answers
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