Moira said, "If a right triangle has one side with a length of 3 units and one side with a length
of 4 units, then the third side has a length of 5 units."
Moira's claim is not true. Give an example of a right triangle with sides of length 3, 4, and a
number other than 5. Explain your reasoning.

If the two sides with length 3 and 4 are the two legs, then the missing side, i.e. the hypotenuse, is indeed 5.

But it could also be the case that 4 is the hypotenuse and 3 is one of the legs. In this case, the missing side is the other leg, so we calculate it using

So, a right triangle with legs and 3 has an hypotenuse of 4.

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system