Quadratic Functions
Trigonometry
Periodic Functions
100
Solve the equation x^2+4x-5=0.
x = 1, x = -5
100
In a triangle where 2 angles are known and one side is known, can you find the length of a side using sine law?
Yes
100
Is this graph a periodic function?
No.
200
Solve the equation x^2 + 8x = 9x + 42.
x = 7, x = -6
200
Find side b using sine law.
8.13cm
200
What vertical shift of y=sin x results in the graph of y=sin x - 3?
Translating the graph 3 units downwards.
300
A a cannon ball is shot into the air with an upward velocity of 40 ft/sec. The equation that gives the height (h) of the ball at any time (t) is:
h(t)= -16t2 + 40ft + 1.5. How long did it take for the ball to reach the ground?
2.54 seconds.
300
Find the length of c where angle C is 73º, angle a is 49º, and side a is 15cm. Round to nearest cm.
19 cm
300
What is the amplitude of y=2 sin x + 4?
2
400
A ball is shot from the edge of the building, 50 feet above the ground. It's initial velocity is 20 ft per second. h = -16t^2 + 20t + 50 is the height after t seconds. How long does it take for the ball to hit the ground?
5/2 or 2.5 seconds.
400
Find the length of side q in triangle PQR in which ∠ P =116°, p = 8.3 cm and ∠ Q = 35.8˚
5.4cm
400
Graph y= sin 2x.
