Year 10
Foundation
Use graphs to solve simple equations including simultaneous equations
Year 10
Foundation
Use graphs to solve simple equations including simultaneous equations
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Lesson details
Key learning points
- In this lesson, we will investigate how to solve a pair of simultaneous equations by ploptting them and interpreting the coordinates at the point of intersection.
Licence
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3 Questions
Q1.
Which table of values is correct for the equation x + y = 7?
A
B
Q2.
Which table of values is correct for the equation 2x + y = 7?
B
C
Q3.
Which diagram shows the correct graph for the line 3x + 2y = 15
A
C
3 Questions
Q1.
By using the graph, solve the equation 7=2x+2
x=-1
x=2
x=7
Q2.
By using the graph, solve the equation -3=5-2x
x=2.5
x=5
Q3.
By using the graph, solve the simultaneous equation y=5-2x and y=5x-2
x=0.4, y=-2
x=2.5, y=5