1. In the graph below, the straight line B is given by the equation y = Tx + P. As the line shifted, the constant "P," which is the y-intercept, must have changed.
   
2. In the graph below, the line A is given by the equation y = Z + Wx. As the line shifted, the constant "W," which is the slope, must have changed. Also, the constant "Z," the y-intercept, also changed.
   

If you got both of these correct, move on to the next unit. If you got either of these wrong, read through the detailed solutions and review this unit.

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