Determine if the number is a solution to the equation.
= x; x = 5
A. Yes
B. No
Answer: A
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Find the vertex, focus, and directrix of the parabola. Graph the equation.(y + 1)2 = 4(x - 1)
A. vertex: (1, -1)
focus: (2, -1)
directrix: x = 0
B. vertex: (1, -1)
focus: (2, -1)
directrix: x = 0
C. vertex: (1, -1)
focus: (1, 0)
directrix: y = -2
D. vertex: (-1, 1)
focus: (-1, 2)
directrix: y = 0
Solve the problem.Tom Quig traveled 250 miles east of St. Louis. For most of the trip he averaged 70 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?
A. 60 miles B. 35 miles C. 40 miles D. 50 miles
Match the differential equation with the appropriate slope field.
= y + 2
A. 
B. 
C. 
D. 
Solve the polynomial inequality. Express the solution using interval notation.(x - 9)(x + 6) > 0
A. (-?, -6) ? (9, ?) B. (-6, ?) C. (-6, 9) D. (-?, -9) ? (6, ?)