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diamong [38]
2 years ago
9

What is the equation of the axis of symmetry of a parabola if its x-intercepts are -3 and 7?

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
7 0
This is a parabola, meaning the equation is a quadratic, so it has 2 roots or x-intercepts, keeping in mind that vertex will lie half-way between those intercepts.

so what's the x-value halfway between -3 and 7?  yeap, you guessed it, 2.

so the axis of symmetry for this vertical parabola will be at x = 2.
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Determine the unknown angle measures in the figure.<br><br>HELP NOW!!! please
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Answer:

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m∠3=131°

m∠4=80°

m∠5=37°

Step-by-step explanation:

First you have to find m∠2

To do that find m∠6 (I created this angle shown in pic below)

Find m∠6 by using the sum of all ∠'s in a Δ theorem

m∠6=180°-(63°+49°)

m∠6=68°

Now you can find m∠2 with the supplementary ∠'s theorem

m∠2=180°-68°

m∠2=112°

Then you find m∠5 using the sum of all ∠'s in a Δ theorem

m∠5=180°-(112°+31°)

m∠5=37°

Now you can find m∠1

m∠1=180°-(63°+37°)

m∠1=180°-100°=80°

m∠4 can easily be found too now:

m∠4=180°-(63°+37°)

m∠4=80°

m∠3=180°-49°

m∠3=131°

8 0
3 years ago
-1.2<br> 29<br> 20<br> Enter the answer as an exact decimal or simplified fraction
Rudiy27

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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D.  y = 3.5x + 1  WRONG

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Answer:

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