Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 2x - 3
A. (-1, 4); x = -1
B. (-1, -4); x = -1
C. (1, -4); x = 1
D. (1, 4); x = 1
Answer: B
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Solve the application.To obtain a certain shade of paint, Peter mixed 2
gallons of white paint with 6 gallons of brown and 2
gallons of blue paint. How much paint did he have?
A. 3
gallons
B. 
gallon
C. 
gallon
D. 10
gallons
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
What temperature was recorded at 11 a.m.?
A. 78°F B. 79°F C. 77°F D. 75°F
Solve the problem.A projectile is fired with an initial velocity of 600 feet per second at an angle of 70° with the horizontal. In how many seconds will the projectile reach its maximum altitude? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (600 cos 70°)t, and y = (600 sin 70°)t - 16t2.
A. 25.7 sec B. 17.6 sec C. 22.4 sec D. 14.2 sec
2sin2 t = 1
Find all values of t that satisfy the equation.