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noname [10]
3 years ago
15

Which function is a quadratic function? F(x) =2x^2, g(x) =5x^3,k(x)=-x,b(x)=-9x^4

Mathematics
1 answer:
Katen [24]3 years ago
5 0

Answer:

F(x)=2x^2

Step-by-step explanation:

Basically, a quadratic function has x^2 in it (standard form ax^2+bx+c with non-zero a). The others have x^3, -x, x^4, etc., which clearly are NOT x^2.

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9> -2m + 2 - 3
Tanya [424]

Answer:

A

Step-by-step explanation:

Given

9 > - 2m + 2 - 3, that is

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10 > - 2m

Divide both sides by - 2, reversing the symbol as a result if dividing by a negative quantity.

- 5 < m , thus

m > - 5 → A

6 0
3 years ago
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Find the domain of the function.
timurjin [86]

When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.

u(x) ≥ 0.

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9x + 27 ≥ 0 by squaring both sides

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5 0
4 years ago
Which system of inequalities has a line as a solution?
erastova [34]

linear inequality

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7 0
3 years ago
Tell whether the graph of the Quadratic function y=-3x squared +x+1 opens upward or downward
8_murik_8 [283]

Answer:

down

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The coefficient of the x^2 term is negative so it opens facing down

X^2 coeffient

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8 0
3 years ago
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lesya692 [45]

Answer:

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b = - 6

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4 0
3 years ago
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