Find an equation of the parabola described.Focus at (20, 0); directrix the line x = -20

A. y2 = 80x
B. x2 = 80y
C. y2 = 20x
D. y2 = -80x


Answer: A

Mathematics

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A. 7 B. -7 C. 0 D. undefined

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Write the equation in slope-intercept form.2x - 7y = 6

A. y = 2x - 6
B. y = x - 
C. y = x + 
D. y = x + 

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Write as a proportion.48 is to 72 as 6 is to 9.

A.   =  
B.   =  
C.   =  
D.   =  

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Find the difference. Simplify the result. - 

A.
B.
C.
D.

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