### Home > INT3 > Chapter Ch12 > Lesson 12.2.2 > Problem 12-101

12-101.

Consider the equation 3

*x*+*y*–*z*= 6. Homework Help ✎Sketch a graph.

Is (1, 2, –1) on the graph? Justify your answer.

Notice that there are three variables. Find the three intercepts.

Does the point make the equation true?

Yes, it is a solution to the equation.