Simplify the expression.3-2
A. -9
B. 
C. 9
D. 
Answer: B
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Parametric equations and 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, left to right (from
2nd quadrant to origin to 1st quadrant)
B. y = x2; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)
C. x = y2; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)
D. x = y2; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)
Use point-by-point plotting to sketch the graph of the equation.y = x + 3
A. 
B. 
C. 
D. 
Find the x-values where the function does not have a derivative.
A. x = -2, x = 2 B. x = -2, x = 0, x = 2 C. x = 0 D. Exists at all points
Find the value of the expression.
A. 0.2 B. 20 C. 20,000 D. 2