Question

review what you know! vocabulary

1. the

is the ratio of the vertical change to the horizontal change of a line.

1. a relationship that can be modeled by the equation ( y = mx ) is a

.

1. the y - value at which a line of a graph crosses the y - axis is called the

.

1. an equation written in the form ( y = mx + b ) is called the

.
:: linear equation :: proportional relationship :: slope :: slope - intercept form :: y - intercept

Explanation:

1. Matches the definition of slope, the ratio of vertical to horizontal change.
2. The equation $y=mx$ represents a proportional relationship where $y$ is directly proportional to $x$.
3. The y-value where a line crosses the y-axis is the y-intercept.
4. The form $y=mx+b$ is the standard slope-intercept form of a linear equation.

Answer:

1. slope
2. proportional relationship
3. y-intercept
4. slope-intercept form