Multiply, then simplify the product. Assume that all variables represent positive real numbers.(4
+ 
)(4
- 
)
A. 16x + y
B. 16x - 2
- y
C. 16x2 - y2
D. 16x - y
Answer: D
Mathematics
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The bar graph shows the number of tickets sold each week by the garden club for their annual flower show.
During which week was the most number of tickets sold?
A. Week 4 B. Week 1 C. Week 2 D. Week 5
Mathematics
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = 8x
A. vertex: (0, 0)
focus: (0, 2)
directrix: y = -2
B. vertex: (0, 0)
focus: (2, 0)
directrix: x = -2
C. vertex: (0, 0)
focus: (0, 2)
directrix: y = -2
D. vertex: (0, 0)
focus: (-2, 0)
directrix: x = 2
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 9x - 8, g(x) = 
A. Yes B. No
Mathematics
Find the foci of the given hyperbola.
- 
= 1
A. (- 
, 0) , (
, 0)
B. (0, -7), (0, 7)
C. (0, - 
) , (0, 
)
D. (-6, 0), (6, 0)
Mathematics