# data[].attributes.body
the set of values that a given function can take as its argument varies.

# data[].attributes.body
the set of possible values of the independent variable or variables of a function.

# data[].attributes.body
A linear function is any function that graphs to a straight line.

# data[].attributes.body
the point or place where something begins, arises, or is derived.

# data[].attributes.body
A parent graph is the graph of a relatively simple function.

# data[].attributes.body
The slope-intercept form is simply the way of writing the equation of a line so that the slope (steepness) and y-intercept (where the line crosses the vertical y-axis) are immediately apparent.

# data[].attributes.body
In point-slope form, y1 is the y value of the known point on the line, m is the slopeand x1 is the x value of the known point.

# data[].attributes.body
the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept, where the line crosses the y-axis.

# data[].attributes.body
The x-intercepts are where the graph crosses the x-axis.

# data[].attributes.body
the magnitude of a real number without regard to its sign.