Search for tag: "coordinate"

Writing an equation and graphing a line given its slope and y-intercept

The informaton given here can be entered directly into the y = mx + b or slope-intercept form. Then the y-intercept is used as a starting point where you apply rise over run to the given slope to…

From  Tom Grant 6 plays 0  

Graph a line given its equation in slope-intercept form: Fractional slope

Another demo on how to use the y-intercept to start a graph of a linear equation and then use the slope to find other points on the graph. It finishes with showing the line representing all of the…

From  Tom Grant 8 plays 0  

Reading a point in the coordinate plane

Just a short demo of how read the location of an (x, y) point on a Cartesian coordinate graph

From  Tom Grant 14 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  

Graphing a parabola of the form y=ax^2

Demonstrates how to make t his graph per instructions, and also shows how to deal with a fractional leading coefficient.

From  Tom Grant 13 plays 0  

Finding x- and y-intercepts of a line given the equation: Basic

Shows how to substitute zero for y to find the x-intercept and zero for x to find the y-intercept.

From  Tom Grant 29 plays 0  

Plotting rational numbers on a number line

Just showing how to locate different fractions on a number l ine

From  Tom Grant 31 plays 0  

Plotting integers on a number line

Just a quick demonstratioin of putting dots and coordinates on a line graph.

From  Tom Grant 17 plays 0  

Using the Midpoint Formula

Explains why the midpoint formula works, and then uses it to find the halfway point between two given points.

From  Tom Grant 572 plays 0  

Finding Minimum and Maximum Values

Demonstrates the quickest way to find a minimum or maximum value for a quadratic function.

From  Tom Grant 637 plays 0  

Finding An Equation of a Line Given Two Points

A complete discussion about how we can create an equation in two variables based on knowing only two points on the graph of this equation. Two methods are shown so the student can choose the method…

From  Tom Grant 1,275 plays 0  

Plotting Ordered Pairs on a Rectangular Coordinate System

This video explains the rectangular coordinate system and labels its parts, then shows how to plot points.

From  Tom Grant 2,002 plays 0  

Graphing Non-Linear Equations, Part 2

This video demonstrates how to tabulate ordered pairs in order to graph an absolute value function.

From  Tom Grant 1,791 plays 2  

Finding Slopes of Horizontal and Vertical Lines

This video explains the slopes of horizontal and vertical lines.

From  Tom Grant 1,800 plays 0  

Graphing a Line Using Slope and y-intercept

Given y=mx + b, this video shows how to use the b-value to create the y-intercept and then use the slope to find other points.

From  Tom Grant 1,928 plays 0