Simplify.
A. 
B. 
C. 
D. 
Answer: B
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Write an equation for a function that has a graph with the given characteristics.The shape of y = 
is shifted 7.9 units to the left. This graph is then vertically stretched by a factor of 1.9. Finally, the graph is reflected across the x-axis.
A. f(x) = -1.9
B. f(x) = -7.9
C. f(x) = -1.9
D. f(x) = 1.9
Find the center, foci, and vertices of the ellipse.2x2 + 5y2 - 12x + 70y + 253 = 0
A. 
+ 
= 1
center: (-3, 7); foci: (-1.3, 7), (-4.7, 7); vertices: (-5.2, 7), (-0.8, 7)
B. 
+ 
= 1
center: (3, -7); foci: (4.7, -7), (1.3, -7); vertices: (5.2, -7), (0.8, -7)
C. 
+ 
= 1
center: (3, -7); foci: (4.7, -7), (1.3, -7); vertices: (5.2, -7), (0.8, -7)
D. 
+ 
= 1
center: (-3, 7); foci: (-1.3, 7), (-4.7, 7); vertices: (-5.2, 7), (-0.8, 7)
Solve the system of equations. If the system has no solution, say that it is inconsistent.
A. x = -4y + 5, where y is any real number or {(x, y) |x = -4y + 5, where y is any real number} B. y = 4x + 5, where x is any real number or {(x, y) | y = 4x + 5, where x is any real number} C. y = -4x + 5, where x is any real number or {(x, y) | y = -4x + 5, where x is any real number} D. inconsistent
Multiply.(-1.3)(-14.6)
A. 15.9 B. -13.3 C. 18.98 D. -15.9