An archway is model… - QuestionCove

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Algebra 20 Online

OpenStudy (neeciec):

An archway is modeled by the equation y = -2x2 + 8x. A rod is to be placed across the archway at an angle defined by the equation x − 2.23y + 10.34 = 0. If the rod is attached to the archway at points A and B, such that point B is at a higher level than point A, at what distance from the ground level is point B? 8 units 6 units 5 units 3 units Please help me!

9 years ago

OpenStudy (3mar):

Well, I am here.

9 years ago

OpenStudy (neeciec):

Can you help me with this please?

9 years ago

OpenStudy (3mar):

One minute, please!

9 years ago

OpenStudy (retireed):

It can be easily solved by graphing both equations. I tried to solve it by setting the equations equal to each other but failed.

9 years ago

OpenStudy (triciaal):

was 8 correct?

9 years ago

OpenStudy (retireed):

I got very close to six

9 years ago

OpenStudy (3mar):

I think @retirEEd got the the correct approach!

9 years ago

OpenStudy (triciaal):

agree from the graph

9 years ago

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