# How do you draw the solution for #x+y= -1# and #x-y=3#?

##### 1 Answer

#### Answer:

The solution is

#### Explanation:

**Equation 1:**

**Equation 2:**

Drawing the solution means graphing the solution. For linear equations in standard form, it is easy to find the x- and y-intercepts, which can be plotted for each line, and a straight line can be drawn through the two points. You should plot each line separately and then determine the solution, which is the point of intersection of the two lines.

**X-intercept:** value of

**Y-intercept:** value of

**Equation 1**

**x-intercept:** substitute

**The x-intercept is #(1,0)#. Plot this point.**

**y-intercept:** substitute

**The y-intercept is #(0,1)#. Plot this point.**

**Draw a straight line through the two points.**

**Equation 2**

**x-intercept:** substitute

**The x-intercept is #(3,0)#. Plot this point.**

**y-intercept:** substitute

Divide both sides by

**The y-intercept is #(0,-1)#. Plot this point.**

**Draw a line through the two points.**

The point of intersection is the solution, which is

graph{(x+y-1)(x-y-3)=0 [-10, 10, -5, 5]}