ILEARN Checkpoint # 2 Review

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never intersect or meet. They have the same slope.

Front

What does it mean if two lines have the same slope?

Back

If two lines have the same slope, they are parallel and will never intersect.

Front

How do you determine the slope of a line given two points?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What is the slope of the line that passes through the points (6,7) and (4,2)?

Back

The slope is 5/2.

Front

What does it mean if a system of equations has one solution?

Back

It means the lines represented by the equations intersect at exactly one point.

Front

What does it mean if a system of equations has no solution?

Back

It means the lines represented by the equations are parallel and never intersect.

Front

What does it mean if a system of equations has infinitely many solutions?

Back

It means the lines represented by the equations are the same line, overlapping each other.

Front

How do you find the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis, found by setting x=0 in the equation of the line.

Front

What is the formula for the slope-intercept form of a line?

Back

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

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept indicates the value of y when x is zero, representing the starting point of the line on the y-axis.