Maths Use graphs to solve simple equations including

Maths Use graphs to solve simple equations including simultaneous equations. Miss Davies 1

Use graphs to solve simple equations 2

Use graphs to solve simple equations a) Write down the coordinates of the point where the graphs of y = -�� + 4 and y = �� – 2 intersect. b) Use your answer to (a) to solve the simultaneous equations. y = −�� +4 3 y = �� − 2

Use graphs to solve simple equations a) Write down the coordinates of the point where the graphs of y = -�� +4 and y = �� – 2 intersect. y = -�� + 4 b) Use your answer to (a) to solve the simultaneous equations. y = −�� +4 y = �� − 2 4

Use graphs to solve simple equations 4. Draw the graph of y = �� + 1 and Use the graphs to solve the y = -2 x + 4 on the same grid. simultaneous equations y = �� +1 y = -2 x + 4 5

Answers 6

Use graphs to solve simple equations y = 12 (2, 12) 7

Use graphs to solve simple equations (1. 5, 5) y=5 8

Use graphs to solve simple equations a) Write down the coordinates of the point where the graphs of y = -�� +4 and y = �� – 2 intersect. (3, 1) y = -�� + 4 b) Use your answer to (a) to solve the simultaneous equations. y = −�� +4 y = �� − 2 9

Use graphs to solve simple equations 4. Draw the graph of y = �� + 1 and Use the graphs to solve the y = -2 x + 4 on the same grid. simultaneous equations y = �� +1 y = -2 x + 4 10