12.20.23 Practice Summative A & C Blocks: Linear Equations

Front

How do you calculate slope using a graph?

Back

Slope is calculated as rise over run.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio that describes how one quantity changes in relation to another, often represented as 'k' in the equation y = kx.

Front

Write the equation with a slope of 2/3 and a y-intercept of -3.

Back

The equation is y = 2/3x - 3.

Front

Which equation represents slope-intercept form?

Back

The slope-intercept form is represented as y = mx + b, where m is the slope and b is the y-intercept.

Front

Graph x=2.

Back

The graph of x=2 is a vertical line that crosses the x-axis at the point (2,0).

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept represents the point where the line crosses the y-axis, indicating the value of y when x=0.

Front

How do you find the x-intercept of a linear equation?

Back

To find the x-intercept, set y=0 in the equation and solve for x.

Front

What is the formula for slope between two points (x1, y1) and (x2, y2)?

Back

The formula for slope is m = (y2 - y1) / (x2 - x1).

Front

What is the significance of a slope of 0?

Back

A slope of 0 indicates a horizontal line, meaning there is no change in y as x changes.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases, resulting in a downward slant from left to right.