Find the axis of the graph of the function.f(x) = (x + 1)2 + 7
A. y = -1
B. x = 0
C. x = 1
D. x = -1
Answer: D
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The problem tells by what factor and direction the graph of the given function is to be stretched or compressed. Give an equation for the stretched or compressed graph.y = x3 + 1
stretched vertically by a factor of 5
A. y = 
+ 
B. y = 5x3 + 1
C. y = 125x3 + 1
D. y = 5x3 + 5
Solve the problem.Vehicles in accidents often leave skid marks. To determine how fast a vehicle was traveling, officials often use a test vehicle to compare skid marks on the same section of road. If a vehicle involved in a crash left skid marks that are D feet long and a test vehicle traveling at v miles per hour leaves skid marks that are d feet long, then the speed of the vehicle in the crash is given by 
Determine V if v = 50 miles per hour, D = 289 feet, and d = 100 feet.
A. 80 miles per hour B. 85 miles per hour C. 170 miles per hour D. 95 miles per hour
Solve the problem.If a projectile is fired with an initial velocity of v = 600 feet per second at an angle of 
with the horizontal, it will follow a parabolic path described by 
Graph the path of the projectile and determine to the nearest foot the x-coordinate when the maximum height occurs.
A. 8618 ft B. 7 ft C. 29 ft D. 4309 ft
Multiply.(2 + 5i)(4 + 3i)
A. 23 + 14i B. -7 + 26i C. -7 - 26i D. 15i2 + 26i + 8