1. Warm-up: Monday, Jan. 23rd Solve each by substitution.

2. Warm-up: Tuesday, Jan.24th 1.Graph the solution set of the inequalities or indicate that the system has no solution. 4x – 5y > -20 X > 3 Solve the system by the method of your choice.

3. Warm-up: Wed./ Thurs. 1)Let x represent the 1 st number and y represent the second number. Write your system of equation then solve. The sum of two numbers is 20 and their product is 96. Find the numbers. Graph the solution set of each system of inequalities or indicate that the system has no solution.

4. Warm-up: Friday, Jan. 27th a.Graph the solution set of the system: b. List the points that form the corners of the graphed region in part (a). c. Evaluate 3x + 2y at each of the points obtained in part (b).