Solve.A stone is dropped from a tower that is 770 feet high. The formula 
describes the stone's height above the ground, h, in feet, t seconds after it was dropped. What is the stone's height 4 seconds after it is released?
A. 489 ft
B. 514 ft
C. 539 ft
D. 524 ft
Answer: B
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Solve the problem.A cable TV company charges $21 for the basic service plus $5 for each movie channel. Write an equation for the total cost in dollars, y, of subscribing to cable TV, using x movie channels.
A. y = 21x - 5 B. y = 21x + 5 C. y = 5x + 21 D. y = 5x - 21
Sketch the graph of the quadratic function. Identify the vertex, intercepts, and the equation for the axis of symmetry.f(x) = 2x2 + 12x + 22
A. vertex (3, 4)
x-intercepts: none
y-intercept (0, 22)
axis of symmetry: x = 3
B. vertex (-3, 4)
x-intercepts: none
y-intercept: 
axis of symmetry: x = -3
C. vertex (3, 4)
x-intercepts: none
y-intercept 
axis of symmetry: x = 3
D. vertex: (-3, 4)
x-intercepts: none
y-intercept: (0, 22)
axis of symmetry: x = -3
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 
D. 
Graph.4(y + 1)2 - 16(x + 4)2 = 64
A. 
B. 
C. 
D. 