Search for tag: "lines"

Identifying parallel and perpendicular lines from equations

This shows how to transform all given equation that are not in slope-intercept form and then pick out the slopes of all three given lines and compare them to see if they are parallel, perpendicular…

From  Tom Grant 13 plays 0  

Finding the vertex, intercepts, and axis of symmetry from a graph of a parabola

This gives a graph of a parabola which is the graph of a quadratic equation or function. The demonstration first includes classifying it as a parabola that is opening downward or upward. Then it…

From  Tom Grant 14 plays 0  

Power rules with negative exponents

A short example of how to deal with a fraction raised to a negative power.

From  Tom Grant 26 plays 0  

Graphing a linear inequality in the plane: Slope-intercept form

Shows how to determine the boderline separating the side of the x-y graph that has true solutions from the side that does not. It is then shown how to decide whether that line should be dotted or…

From  Tom Grant 24 plays 0  

Classifying systems of linear equations from graphs

Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.

From  Tom Grant 17 plays 0  

Evaluating functions: Linear and quadratic or cubic

Speaks to the meaning of f(x), i.e. function notation. Then demnstrates how to get the value of two different functons given the input value.

From  Tom Grant 97 plays 0  

Finding the slopes of horizontal and vertical lines

Presents the use of the slope formulat we use to calculate the slopes of these special lines.

From  Tom Grant 24 plays 0  

Classifying slopes given graphs of lines

Shows how to identify the four different categories for slopes of straight line graphs

From  Tom Grant 31 plays 0  

Graphing a linear equation of the form y = mx

Demonstrates how to graph this tyep of equation by finding three points, but also how you can find just one point and use the slope "m" to find others.

From  Tom Grant 56 plays 0  

Graphing a linear inequality on the number line

A demonstration of number line graphs. There are two examples in the vi deo, but when you do the questions in ALEKS you'll only have to do one.

From  Tom Grant 11 plays 0