Solving by Graphical method

Question 1

What are the steps to solve a pair of linear equations by the graphical method

y = 2x + 1

y = -3x + 2

Answer 1

Step 1 Compute 3 points for each of the linear functions

Step 2 Plot the points for each linear function

Step 3 Draw the line passing through each point

Step 4 Determine the intersecting point of both lines

Step 5 Identify the coordinates of the intersecting point

The answer corresponds to the coordinates of this point

Question 2

What is the coordinates of the intersecting point, and hence the solution?

Answer 2

(0.2, 1.4)

x = 0.2 and y = 1.4

Question 3

What is the coordinates of the intersecting point, and hence the solution?

Answer 3

(0, 5)

x = 0 and y = 5

Question 4

What is the coordinates of the intersecting point, and hence the solution?

Answer 4

(4, 2)

x = 4 and y = 2

Question 5

What is the coordinates of the intersecting point, and hence the solution?

Answer 5

(4, 0)

x = 4 and y = 0