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4 years ago

Can you plz help me with this math problem?

Mathematics

2 answers:

Goryan [66]4 years ago

6 0

Answer:

Step-by-step explanation:

Sedaia [141]4 years ago

5 0

Answer:

Step-by-step explanation:

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Which functions have an axis of symmetry of x = –2? Check all that apply.

ELEN [110]

Answer : $Answer :f(x) = x^2 + 4x + 3 \ and \ f(x) = -2x^2 - 8x + 1$

Given: axis of symmetry of x = –2

To find axis of symmetry we use formula $x =\frac{-b}{2a}$

We check which equation has axis of symmetry x= -2

(1) $f(x) = x^2 + 4x + 3$

a=1 , b=4 so axis of symmetry $x =\frac{-4}{2*1} = -2$

(2) $f(x) = x^2 - 4x - 5$

a=1 , b=-4 so axis of symmetry $x =\frac{-(-4)}{2*1} = 2$

(3) $f(x) = x^2 + 6x + 2$

a=1 , b=6 so axis of symmetry $x =\frac{-6}{2*1} = -3$

(4) $f(x) = -2x^2 - 8x + 1$

a=-2 , b=-8 so axis of symmetry $x =\frac{-(-8)}{2*(-2)} = -2$

(5) $f(x) = -2x^2 + 8x - 2$

a=-2 , b=8 so axis of symmetry $x =\frac{-(8)}{2*(-2)} = 2$

So $f(x) = x^2 + 4x + 3$ and $f(x) = -2x^2 - 8x + 1$ has axis of symmetry x=-2

9 0

4 years ago

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A farmer hopes to yield 600 kg of corn after one harvest from a small plot of land. he knows that every square meter of land can

irga5000 [103]

a is correct, b is not. Redo b first

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4 years ago

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What is a polynomial function in standard form with zeros 1,-1,2 and 4?

kow [346]

+000000000000000000000000000000000000000000000

5 0

4 years ago

75.89+0.12=27.41+0.36

finlep [7]

Both of the equation you put up don't equal each other

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4 years ago

Given that the radius of circle A is 4 cm, and the diameter of circle B is 6 cm, what can be concluded about the two circles. So

Alinara [238K]

All circles are similar.

If they were congruent, they would have the same radius's/diameter's.

Circle B = diameter of 6

Circle A = radius of 4

Diameter = 2 * Radius

Circle A = diameter of 4 * 2 = 8

So they have different diameter's, therefore they are not congruent. So they are similar only.

8 0

3 years ago