Final answer:
To solve the system of equations by graphing, we need to graph each equation on a coordinate plane and identify the point where the lines intersect.
Step-by-step explanation:
To solve the system of equations by graphing, we need to graph each equation on a coordinate plane and identify the point where the lines intersect. Let's start with question 3.
Question 3: y = x + 1 and y = 2x + 3
Graph the equations y = x + 1 and y = 2x + 3 on the same coordinate plane. The point where the lines intersect is the solution to the system of equations. In this case, the solution is (2, 3).
Question 4: y = x - 2 and y = -x + 4
Graph the equations y = x - 2 and y = -x + 4. The point where the lines intersect is the solution to the system of equations. In this case, the solution is (3, 1).