(MCA) 4.1 (Flashcard) Plotting Points. Evaluating Functions.

Front

What is the definition of the x-axis?

Back

The horizontal number line in a Cartesian coordinate system, where the y-coordinate is zero.

Front

What is the definition of the y-axis?

Back

The vertical number line in a Cartesian coordinate system, where the x-coordinate is zero.

Front

What is an ordered pair?

Back

A pair of numbers (x, y) that represent a point in a two-dimensional space.

Front

How do you identify the coordinates of a point on a graph?

Back

The first number in the ordered pair represents the x-coordinate, and the second number represents the y-coordinate.

Front

What does it mean to evaluate a function?

Back

To find the output of a function for a given input value.

Front

What is the formula for evaluating a linear function f(x) = mx + b?

Back

Substitute the value of x into the equation to find f(x).

Front

What is the significance of the origin in a coordinate plane?

Back

The point (0, 0) where the x-axis and y-axis intersect.

Front

What is the difference between the x-coordinate and y-coordinate?

Back

The x-coordinate indicates the horizontal position, while the y-coordinate indicates the vertical position.

Front

How do you plot a point (a, b) on a graph?

Back

Start at the origin, move 'a' units along the x-axis, and then 'b' units up or down along the y-axis.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) of a function.