[size=150][size=100]Consider the equation q=4+0.8p.[/size][/size]
1. What value of q would make the equation true when:[br]a. p is 7?[br]b. p is 100?
2. What value of p would make the equation true when:[br]a. q is 12?[br]b. q is 60?
Invite students to share their response and strategy for answering the questions.[br]To find the values of p in the second set of questions, some students may have guessed and checked, but many students should have recognized that they could solve the equations for p (either before or after substituting the value of q). If no students mentioned solving the equations, bring it to their attention.[br][br]Remind students that to solve 12=4+0.8p is to find the value of p that makes the equation true.