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
You might also like to view...
Simplify the fraction, if possible.
A. 7 B. -7 C. 0 D. undefined
Mathematics
Write the equation in slope-intercept form.2x - 7y = 6
A. y = 2x - 6
B. y = 
x - 
C. y = 
x + 
D. y = 
x + 
Mathematics
Write as a proportion.48 is to 72 as 6 is to 9.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Find the difference. Simplify the result.
- 
A. 
B. 
C. 
D. 
Mathematics