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3 years ago

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For what interval is the value of (f – g)(x) negative? (negative infinity, negative 1) (negative infinity, 2) (0, 3) (2, infinit

y)

1 answer:

fenix001 [56]3 years ago

6 0

Answer:

Step-by-step explanation:

Function is negative when graph line lies below the x - axis.

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Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work.

Ivahew [28]

Ok... so this question can be solved by using simultaneous equations.

Use the general from of a parabola

$y = ax^2 + bx + c$

you know the value of c, the y-intercept... y = -4

which means the equation is

$y = ax^2 + bx - 4$

now use the other 2 points to get 2 equations in 2 unknowns

(-2, -20) just substitute

$-20 = (-2)^2a + (-2)b - 4 ~~~or~~~ -20 = 4a - 2b - 4$

this becomes

$4a - 2b = -16$

now the other equation using (4, -20)

The simplified form is

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3 years ago

The area of a rectangular garden is given by the trinomial x2 + x – 42. What are the possible dimensions of the rectangle? Use f

Murrr4er [49]

Answer:

Step-by-step explanation:

Hello, please consider the following.

$x^2+x-42\\\\\text{The sum of the zeroes is -1=-7+6 and the product is -42=-7*6.}\\\\\text{So, we can factorise.}\\\\x^2+x-42\\\\=x^2+7x-6x-42\\\\=x(x+7)-6(x+7)\\\\=(x+7)(x-6)$

So, the possible dimensions of the rectangle are (x+7) and (x-6).

Thank you.

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3 years ago

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Which facts are true for the graph of the function below? Check all that apply. F(x) = 4 5x

RoseWind [281]

The answers are E.) y-int is (0,4), F.) domain of F(x) is all rel numbers , and C.) it is increasing

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3 years ago

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on the first play the football team loss 6 yards. on the second play the team lost 5 yards. what was their total?

Neporo4naja [7]

-11 or the Team lost 11 yards

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In the jone school library,10/20 of the computers have scanners.in simplest form, which fraction of the computers have scanners?

n200080 [17]

Answer:

1/2

Step-by-step explanation:

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3 years ago