
This demo takes some thought so you may want to watch it a few times to fully understand. Writing the expression and then we simplify it so that it is more usable in future.


Shows how to determine the boderline separating the side of the xy 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…


Describes how and why the slopes of parallel and perpendicular lines can be found


Multiplying both sides by the reciprocal of the variable's coefficient in order to get the variable alone and keep the equation balanced.


Adding the same fraction to both sides so the variable is left by itself


The next step in understanding distribution.


Three quick demos, two subtractions and an addition which need adjusting first to create a common denominator


Using long division to change a proper or improper fraction to its decimal value  repeating or terminating are the only possibilities.


