# You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the section of bridge above the arch?

Would appreciate if someone could help me..

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1. Could someone please explain this question to me.

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2. Answer for this QC fro CA students.
1. A
2. C
3. A
4. B
5. B

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3. The answer is: The bridge is about 381.16 ft above the river, and the length of the bridge above the arch is 1,791.58

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4. Actual answers are
1. A
2. C
3. A
4. B
5. D

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5. A
C
A
B
D
100% Standard Form of a Quadratic Function
Quadratic Functions and Equations

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6. Thanks dudes! I’m now passing algebra with a B :)

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7. I used those answers and they were all wrong...
Answers the test gave me:
D
C
B
D
A

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8. yayyaalal was right.
A
C
A
B
D
IS 100% RIGHT!!!!

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9. yayyaalal is 100% Correcto mundo

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10. yayyaalal and little mermaid are correct, these are the answers to the unit 6 lesson 2 quick check.

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11. The little mermaid is 100% correct :D

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12. Ayee me and WOT are in the same class

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13. Correct ^^

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14. Y’all, the answers to the next one “Modeling with Quadratic Functions” are
1.c
2.d
3.a
4.b
5.c

Have fun finishing up the semester!

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15. Yo you’re the best lol

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16. Thank you so much Yo

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17. @|-/

Ay, we both have the same name and like twenty one pilots, we should be frens.

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18. it's
A
C
A
B
D

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19. 1. A. Vertex (2,-10) axis of symmetry x=2
2. C. It took the car 10 seconds to reach a speed of 60 miles per hour.
3. Graph A. Where it faces down going through 1,0 and 3,0
4. B. y=(x+2)^2-7
5. D. The bridge is about 381.16 ft above the river, and the length of the bridge above the arch is about 1,791.58 ft.

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