# How do you find the amplitude of a cosine function?

## How do you find the amplitude of a cosine function?

The amplitude of y=asin(x) and y=acos(x) represents half the distance between the maximum and minimum values of the function.

## What is the amplitude of a cosine graph?

The amplitude of the sine and cosine functions is the vertical distance between the sinusoidal axis and the maximum or minimum value of the function.

How do you find the amplitude of a function from a graph?

Amplitude is the distance between the center line of the function and the top or bottom of the function, and the period is the distance between two peaks of the graph, or the distance it takes for the entire graph to repeat. Using this equation: Amplitude =APeriod =2πBHorizontal shift to the left =CVertical shift =D.

### How does amplitude affect a cosine graph?

The change of amplitude affects the range of the function as well, because the maximum and minimum values of the graph change. Before you multiply a sine or cosine function by 2, for instance, its graph oscillated between –1 and 1; now it moves between –2 and 2. The negative sign just flips the graph upside down.

### What is amplitude of function?

The amplitude of a function is the amount by which the graph of the function travels above and below its midline. When graphing a sine function, the value of the amplitude is equivalent to the value of the coefficient of the sine. The amplitude is dictated by the coefficient of the trigonometric function.

What is amplitude on a graph?

The amplitude of a function is the amount by which the graph of the function travels above and below its midline.

## What is amplitude of graph?

The amplitude of a function is the amount by which the graph of the function travels above and below its midline. When graphing a sine function, the value of the amplitude is equivalent to the value of the coefficient of the sine.

## How does amplitude affect graph?

When 0 < a < 1, the amplitude of the graph decreases, causing the slopes of the graph to appear more “flat”. When a > 1, the amplitude of the graph increases, causing the slopes of the graph to appear more “steep”. This shows that changing the a affects the amplitude of the graph.

What is amplitude graph?