Simplify.8.7 - 7.9 ÷ 2.5 ? (4.5 - 4.7)2
A. 0.0128
B. 8.5736
C. -70.3
D. 8
Answer: B
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Find the y-intercept for the graph of the quadratic function.f(x) = 2x2 - 3x - 5
A. 
B. (0, 5)
C. 
D. (0, -5)
Find the center, foci, and vertices of the ellipse.3x2 + 4y2 - 42x + 56y + 331 = 0
A. 
+ 
= 1
center: (7, -7); foci: (8, -7), (6, -7); vertices: (9, -7), (5, -7)
B. 
+ 
= 1
center: (-7, 7); foci: (-6, 7), (-8, 7); vertices: (-9, 7), (-5, 7)
C. 
+ 
= 1
center: (7, -7); foci: (8, -7), (6, -7); vertices: (9, -7), (5, -7)
D. 
+ 
= 1
center: (-7, 7); foci: (-6, 7), (-8, 7); vertices: (-9, 7), (-5, 7)
Let z vary jointly with x and y. Find the constant of variation k. Then, use 
to find z when x = 5 and y = 7.z = 69,020 when x = 58 and y = 119
A. k = 10; z = 120
B. k = 
; z = 120
C. k = 
; z = 350
D. k = 10; z = 350
Provide an appropriate response.One factor of 8x2 + 6x - 27 is
A. 4x - 9 B. 8x + 1 C. 2x - 3 D. 2x - 27 E. 4x - 3