Graphing Equations

Front

What is the formula to find the slope of a line?

Back

Slope = rise over run.

Front

What does 'rise' refer to in graphing?

Back

Rise refers to the vertical change between two points.

Front

What does 'run' refer to in graphing?

Back

Run refers to the horizontal change between two points.

Front

How do you graph a slope of rise 3 run 1?

Back

Start at a point, move up 3 units and right 1 unit.

Front

What does the equation y=3x represent?

Back

A straight line with a slope of 3 that passes through the origin.

Front

What does the equation y=3x-5 represent?

Back

A straight line with a slope of 3 that intersects the y-axis at -5.

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

What is the y-intercept in the equation y=mx+b?

Back

The y-intercept is the value of y when x=0.

Front

What is the slope of the line represented by the equation y=-5/4x?

Back

The slope is -5/4.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1).