Find the vertex and axis of symmetry of the parabola.x = y2 - 3
A. (-3, 0); y = 0
B. (0, -3); y = -3
C. (-3, 0); x = 0
D. (-3, 0); x = -3
Answer: A
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Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.7
- 5
A. 18
B. 2
C. -18
D. cannot simplify
Rearrange the following equation to solve for R.
ÚÄÄÄÄÄÄÄÄ Z = ûxL2 + R2 a. Z2 + xL2 b. (Z2 + xL2)1/2 c. ÚÄÄÄÄÄÄ ûZ + xL
Approximate the square root. Round to the nearest tenth, if needed.
A. 15.5 B. 15.2 C. 15.4 D. 15.3
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 3; -2 ? t ? 3
A. y = 
x + 3; for x in -6 ? x ? 9
B. y = x2 + 1; for x in -2 ? x ? 2
C. y = 
x - 3; for x in -? < x < ?
D. y = -3x + 3; for x in -? < x < ?