State whether the parabola opens upwards or downwards.y = x2 + 19
A. Upwards
B. Downwards
Answer: A
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Solve the problem.A local television station sends out questionnaires to determine if viewers would rather see a documentary, an interview show, or reruns of a game show. There were 500 responses with the following results:150 were interested in an interview show and a documentary, but not reruns.20 were interested in an interview show and reruns but not a documentary70 were interested in reruns but not an interview show.120 were interested in an interview show but not a documentary.50 were interested in a documentary and reruns.30 were interested in an interview show and reruns.40 were interested in none of the three.How many are interested in exactly one kind of show?
A. 250 B. 230 C. 240 D. 220
Find the function value.Let h(x) = 7x - 
. Find h(-x).
A. -7x - 
B. -7x + 
C. 7x - 
D. -7x - 
Find the foci and endpoints of each axis for the given ellipse.
+ 
= 1
A. Foci: (0 , ±
); vertices: (0, ± 4);
endpoints of the minor axis: (± 3, 0)
B. Foci: (±
, 0); vertices: (± 4, 0);
endpoints of the minor axis: ( 0 , ± 3 )
C. Foci: (± 7, 0 ); vertices: (± 16, 0);
endpoints of the minor axis: (0, ± 3)
D. Foci: (± 4, 0); vertices: (±
, 0 );
endpoints of the minor axis: (± 3, 0)
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 - 8x - 4y + 11 = 0
A. Center (4, 2), r = 3
B. Center (4, -2), r = 3
C. Center (-4, 2), r = 3
D. Center (-4, -2), r = 3