Write an equation for a cross section of the parabolic ear (used to hear sounds from a distance) shown in the picture.


?
      d = 2.25 inches

A.
B. ?
C. ?
D. ?
E.


Answer: E

Mathematics

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A. - 
B.
C. - 11
D. -  

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Provide an appropriate response.Identify whether the slope is positive, negative, zero, or undefined.

A. Negative B. Zero C. Undefined D. Positive

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Find the slope of the line.3y = -x + 13

A. 3
B.  
C. -3
D. - 

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