Trigonometry
You use it when you know the length of the hypotenuse and the adjacent side.
What is Cosine.
When looking up, the angle of ___________ is the angle your line of sight makes with the horizontal.
What is the angle of elevation.
What is it called when 2 angles add up to 90°?
What is an complementary angle?
What does a graph that represent a quadratic relation look like?
What is a parabola opening up.
You use it when you know the hypotenuse and the opposite side.
What is Sine.
When looking down, the angle of _____________ is the angle your line of sight makes with the horizontal.
What is the angle of depression.
What is it called when 2 angles add up to 180°
What is an supplementary angle?
Which direction does this parabola open
f(x) = –2(x – 12)^2 + 15?
What is downward.
You use it when you know the length of the opposite side and the length of the adjacent side.
What is Tangent.
If you are given a triangle with the case of two angles and a side, which trig function would you use to solve it?
What is Sin.
When two lines are crossed by another line, the angles in matching corners are called?
What are corresponding angles?
How many zeros does f(x) = a(x – 5)^2 have if a < 0?
What is 1
See picture.
What is angle <DAB, <BEF, <EFS and <BED?
What is 120°, 107°, 28° and 72°.
What is the Cosine Law?
What is a^2 = b^2 + c^2 - 2bc cosA
or b^2 = a^2 + c^2 - 2ac cosB
or c^2 = a^2 + b^2 - 2ab cosC
If you are given a triangle with the case of two sides and a non-included angle, which trig function would you use to solve it?
What is Sin.
When two lines are crossed by another line: _______ are a pair of angles on the inner side of each of those two lines and on opposite sides of the transversal.
What are Alternate Interior Angles?
Solve x^2+ 6x + 5 = 0.
What is x=5 and x=1
A flag pole is supported by guy wires from the top of the pole to points on the ground on opposite sides of the pole. One of the wires is 6.8 m long and rises with an angle of elevation of 58°. The other wire is 7.4 m long. What would be the angle of elevation for this wire?
What is 51°.
What is the Sin Law?
What is SinA/a = SinB/b = SinC/c
If you are given a triangle with the case of two sides and a included angle, which trig function would you use to solve it?
What is Cosine.
When two lines are crossed by another line: _______ are a pair of angles on the outer side of each of those two lines and on opposite sides of the transversal.
What are Alternate Exterior Angles?
Solve 10 + 5x^2+ 18x = –4x^2– 18x – 10 by factoring.
What is x=-2/3 and x=-10/3
An airplane is flying directly toward two forest fires. From the airplane, the angle of depression to one fire is 43° and 20° to the other fire. The airplane is flying at an altitude of 2500 ft. What is the distance between the two fires to the nearest foot?
What is 4188 ft apart.