Unit 4 Review

Front

What is the slope of the line represented by the equation y = -x + 3?

Back

The slope is -1.

Front

What is the y-intercept of the line represented by the equation y = -x + 3?

Back

The y-intercept is 3.

Front

What is the definition of the y-intercept?

Back

The y-intercept is the point where the line crosses the y-axis.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What are the x and y intercepts of the equation 4x - 5y = 40?

Back

The x-intercept is 10 and the y-intercept is -8.

Front

What is the general form of a linear equation?

Back

The general form is Ax + By = C.

Front

What is the slope-intercept form of a linear equation?

Back

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

Front

How do you convert the equation 4x - 5y = 40 into slope-intercept form?

Back

Rearranging gives y = (4/5)x - 8.

Front

What does the variable 'm' represent in the slope-intercept form of a linear equation?

Back

The variable 'm' represents the slope of the line.

Front

What does the variable 'b' represent in the slope-intercept form of a linear equation?

Back

The variable 'b' represents the y-intercept of the line.