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2 years ago

What polynomial function could be represented by the graph below

Mathematics

2 answers:

zzz [600]2 years ago

7 0

Answer: (B). F(x) = 2x² + 2x - 4

Step-by-step explanation:

Let us think about the parent function F(x) = x² to pick our answer.

Options A and C have only shifted 2 units down (showed by the "-2" at the end) and the function graphed is shifted four units down.

Between options B and D, one is shifted 2 units to the right, and one is shifted 2 units to the left. We need the one shifted 2 units to the left. This is shown by the "+2x" in option B meaning it is our answer.

kotegsom [21]2 years ago

3 0

Answer:

(B). F(X)=2x^2+2x-4

Step-by-step explanation:

-4 means it passes through -4 at the y axis

B and D have -4

graph passes thru x axis at -2 and 1

if you enter x = -2 or 1 in the formula

(B). F(X)=2x^2+2x-4

you get 0

it's not D because when you enter -2 or 1 for x

you don't get 0

you get 8 and -4

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madam [21]

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3 years ago

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Liono4ka [1.6K]

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3 years ago

Solve this equation for x: x^2+11x+28=0

lord [1]

Answer: x = -7 or x = -4

Step-by-step explanation: When an equation has a squared term in it

such as x² + 11x + 28 = 0, it's called a polynomial equation.

The rule for solving a polynomial equation

is to first set it equal to zero, then factor.

Since this equation is already set equal to zero,

our first step is to factor the left side of the equation.

To factor x² + 11x + 28, we need the factors

of 28 that add to 11 which are 7 and 4.

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Whenever two terms are multiplied together to equal zero,

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So if (x + 7)(x + 4) = 0, then either x + 7 = 0 or x + 4 = 0.

Solving each equation from here, we get x = -7 or x = -4.

So our solution is {-7, -4}.

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3 years ago

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