For sin and cos functions, what formula can be used to find the period P?
What is 2pi/k.
100
Sine is positive in what quadrants?
What is I and II.
100
What is the midpoint of (2, 8) and (7, 5)
What is (9/2, 13/2) or (4.5, 6.5)
200
The tanx of a right triangle is 12/5. Find sinx and cosx.
What is sinx = 12/13 and cosx = 5/13.
200
sinx/cosx is equal to what?
What is tanx.
200
y = sin 4. What is the period?
What is pi/2.
200
What is cos 45 degrees?
What is sqrt2/2.
200
What is the distance between points (1, -5) and (4, 3)?
What is sqrt 73 or about 8.54.
300
The cosx of a right triangle is 8/17. Find cotx.
What is 8/15.
300
(cscx)(sinx) = ?
What is 1.
300
y = cos (x - 3) + 7. What are the phase and vertical shifts?
What is phase shift = 3 and vertical shift = 7.
300
What is tan 7pi/6?
What is sqrt3/3.
300
Write the equation of a line that contains the points (1, -3) and (2, 4).
What is y = 7x - 10.
400
The secx of a right triangle is 5/3. Find sinx and tanx.
What is sinx = 4/5 and tanx = 4/3.
400
Does sin^2 x + cos^2 x and sec^2 x - tan^2 x equal the same amount?
What is Yes. (They both equal 1.)
400
y = 5 sin 3 (x + 5). Identify the amplitude, period, and phase shift.
What is amplitude = 5, period = 2pi/3, and phase shift = -5.
400
What is sec 2pi/3?
What is -2.
400
Factor (x^2 + 4x - 12).
What is (x + 6)(x - 2).
500
The sinx of a right triangle is 5/13 and the cotx is 12/5. Find the remaining 4 trig functions.
What is cosx = 12/13, tanx = 5/12, sec = 13/12, and csc = 13/5.
500
1 - (csc^2 x - cot^2 x) + 3 = ?
What is 3.
500
y = 3 cos (2x + 4) - 3. Identifiy the amplitude, period, phase shift, and vertical shift.
What is amplitude = 3, period = pi, phase shift = -2, and vertical shift = -3.
500
At what degrees is cot equal to sqrt3/3?
What is at 60 degrees and at 240 degrees.
500
Standard form of an equation of a circle with radius r and center (h, k) is (x - h)^2 + (y - k)^2 = r^2. Write the correct equation of a circle with a diameter of 12 and center (-4, 5).