Find an equation for the parabola described.Vertex at (7, -3); focus at (9, -3)
A. (y + 3)2 = 8(x - 7)
B. (x + 7)2 = -24(y - 3)
C. (y + 3)2 = -8(x - 7)
D. (x + 7)2 = 24(y - 3)
Answer: A
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercept: 
, no y-intercept ;
B. x-intercept: (0, 0) , y-intercept: (0, 0) ;
C. x-intercept: 
, no y-intercept ;
D. x-intercept: (1, 0) , no y-intercept ;
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Write the number in scientific notation.0.05 × 107
A. 0.5 × 106 B. 5 × 10<6 C. 5 × 105 D. 5 × 109
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 4
, y = 4, and x = 0 about the line y = 4
A. 
?
B. 
?
C. 
?
D. 8?