Unit 6 Pre-Assessment

Front

What is amplitude in a graph?

Back

Amplitude is the maximum distance from the midline of the graph to its peak or trough. For example, in a sine wave, if the highest point is 2 and the lowest is -2, the amplitude is 2.

Front

What is the cosine of 150 degrees?

Back

cos(150°) = -√3/2.

Front

How do you find the length of a side in a triangle using trigonometric ratios?

Back

Use the appropriate trigonometric ratio (sine, cosine, or tangent) based on the given angle and the sides involved.

Front

What is the period of the sine and cosine functions?

Back

The period of the sine and cosine functions is 2π, meaning the function repeats every 2π units.

Front

What is the cosine ratio in a right triangle?

Back

The cosine of an angle is the ratio of the length of the adjacent side to the hypotenuse.

Front

What is the sine ratio in a right triangle?

Back

The sine of an angle is the ratio of the length of the opposite side to the hypotenuse.

Front

What is the tangent ratio in a right triangle?

Back

The tangent of an angle is the ratio of the length of the opposite side to the adjacent side.

Front

How do you calculate the amplitude of a sine wave?

Back

The amplitude is calculated as the absolute value of the maximum value of the wave.

Front

What is the relationship between sine, cosine, and tangent?

Back

tan(θ) = sin(θ) / cos(θ).

Front

What is the formula for finding the length of a side using cosine?

Back

cos(θ) = adjacent/hypotenuse.