Factor the trinomial, if possible.u2 - 3uv - 70v2
A. prime
B. (u + 7v)(u - 10v)
C. (u - 7v)(u + 10v)
D. (u - 7v)(u + v)
Answer: B
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Find the coordinates of (a) the vertex and (b) the x-intercepts of the given quadratic function to the nearest hundredth.f(x) = 
x2 + 7.13x - 
A. (a) (-1.35, -1.84) (b) (3.57, 0), (-0.92, 0) B. (a) (-1.35, -6.67) (b) (-2.94, 0), (0.24, 0) C. (a) (-1.19, -7.66) (b) (1.84, 0), (-1.84, 0) D. (a) (-8.22, -1.84) (b) There are no x-intercepts.
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(3, -3)
A. (3
, 315°), (-3
, 135°)
B. (3
, 45°), (-3
, 225°)
C. (3
, 135°), (-3
, 315°)
D. (3
, 225°), (-3
, 45°)
Simplify the radical.
A. 
B. 
C. 
D. 
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 4 cos ?
A. 
(x - 2)2 + y2 = 4; circle, radius 2,
center at (2, 0) in rectangular coordinates
B. 
x2 + (y - 2)2 = 4; circle, radius 2,
center at (0, 2) in rectangular coordinates
C. 
(x + 2)2 + y2 = 4; circle, radius 2,
center at (-2, 0) in rectangular coordinates
D. 
x2 + (y + 2)2 = 4; circle, radius 2,
center at (0, -2) in rectangular coordinates