Functions Warm Up

Front

What is the y-intercept of a function?

Back

The y-intercept is the point on a graph where a function crosses the y-axis, represented as (0, y). It is the value of y when x = 0.

Front

How do you find the y-intercept from the slope-intercept form of a linear equation?

Back

In the slope-intercept form, y = mx + b, the y-intercept is represented by 'b'.

Front

What is the output of the function y = -x when x = 2?

Back

The output is -2.

Front

How do you calculate the output of a function for a given input?

Back

To calculate the output, substitute the input value into the function's equation and solve for y.

Front

What is the y-intercept of the function y = -2x + 1?

Back

The y-intercept is 1.

Front

What is the output of the function y = x + 5 when x = 3?

Back

The output is 8.

Front

What is the y-intercept of the function y = 4x - 3?

Back

The y-intercept is -3.

Front

What does the term 'function' mean in mathematics?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the general form of a linear function?

Back

The general form of a linear function is y = mx + b, where m is the slope and b is the y-intercept.

Front

How can you determine if a relation is a function?

Back

A relation is a function if each input corresponds to exactly one output.