Find the directrices of the ellipse.x2 + 4y2 = 4
A. y = ± 
B. y = ± 
C. x = ± 
D. x = ± 
Answer: D
Mathematics
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Provide an appropriate response.Make a simple approximate sketch of a graph that corresponds to the following function of time. The number of widgets produced if a certain number is produced per minute 
A. 
B. 
C. 
D. 
Mathematics
Find an equation of the line satisfying the following conditions.If possible, write the equation in slope-intercept form. Vertical, passing through (9, -2)
A. y = -2 B. x = -2 C. x = 9 D. y = 9
Mathematics
Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.1.3x + 3.5 > 0.5x - 0.66
A. x > -5.19; (-5.19, ?)
B. x > -5.2; (-5.2, ?)
C. x < -5.19; (-?, -5.19)
D. x < -5.2; (-?, -5.2)
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics