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3 years ago

F(x)<0 over (-∞, -3) and what other interval?

Mathematics

1 answer:

Iteru [2.4K]3 years ago

7 0

Answer:

Option (4). (-1.1, 0.9)

Step-by-step explanation:

In a graph of any function, values of f(x) are represented by the values on the y-axis for the different input values on x-axis.

For the given graph, values of f(x) are less than zero.

That means interval in which the values of the function are negative for the different values of x.

Negative values of the given function are in the intervals (-∞, -3), (-1.1, 9).

Therefore, from the given options, Option (4) will be the answer.

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3 years ago

A quadratic equation ax^2+bx+c=0 has -11 and 4 as solutions. Find the values of b and c if the value of a is 1 (hint, use zero f

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Answer:

b = 7, c = -44

Step-by-step explanation:

If the quadratic equation has the solutions -11 and 4, the two factors are:

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Since when we use the zero factor property we get

x+11=0 ⇒ x= -11

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Thus, we have used the zero factor property in reverse to find the factorization of the quadratic equation.

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So b is the number that accompanies the x: b = 7

and c is the independent number: c = -44

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Answer:

Step-by-step explanation:

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