Solve the following system of equations graphically. 2x -y = -1 x + y = -2
1 answer:
You might be interested in
Answer:
Explanation:
Here, we want to get the value of x and y
From the given image, the angle y and 116 lie on a straight line
The sum of the angles on a straight line is 180 degrees
Thus:
The sum of the internal angles of a polygon can be calculated by the formula:
where n is the number of sides the polygon has
In the case of the given question, n is 4
Substituting the value of n, we have it that:
To get the value of x: