Evaluate the expression using the order of operations.
- 7
A. 6
B. 1
C. -6
D. -1
Answer: A
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Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 49t2, y = 7t, -? ? t ? ?
A. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
B. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
C. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
D. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
Find the vertex of the parabola.(x - 3)2 = 12(y - 1)
A. (1, 3) B. (3, 1) C. (-3, -1) D. (-1, -3)
Fill in the blank with the correct inequality symbol.If x < 3, then x - 3 
0.
A. ? B. ? C. > D. <
Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 6x + 8
A. (-3, -1); x = -3 B. (3, -1); x = 3 C. (-3, 1); x = -3 D. (3, 1); x = 3