2.5 Warmup

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never intersect or meet. They have the same slope but different y-intercepts.

Front

Why do parallel lines never intersect?

Back

Parallel lines never intersect because they have the same slopes.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, usually represented as 'm' in the equation of a line (y = mx + b).

Front

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

Back

The y-intercept is the point where the line crosses the y-axis, represented as 'b' in the equation y = mx + b.

Front

How do you determine the equation of a line from a graph?

Back

To determine the equation of a line from a graph, identify the slope (rise over run) and the y-intercept.

Front

What is the equation of a line with a slope of 2 and a y-intercept of 3?

Back

The equation is y = 2x + 3.

Front

If a line has a slope of -3, what does this indicate about its direction?

Back

A slope of -3 indicates that the line descends from left to right.

Front

How do you write an equation for a cell phone bill that includes a base fee and additional charges?

Back

The equation can be written as: Bill = Base Fee + (Cost per additional unit * number of additional units).

Front

What is the base fee in Simba's cell phone plan?

Back

The base fee in Simba's cell phone plan is $49.

Front

If Simba uses 20GB of data, how much will he pay for the additional 5GB?

Back

He will pay $5 for each additional GB, so for 5GB, he will pay 5 * $5 = $25.