Currently viewing the tag: "Simultaneous linear equations"
(1) Plot the graphs of the straight lines y = x, y = 1.1x – 0.2
and y = 0.9x – 0.1
What do the graphs tell you about the solutions to the two pairs of simultaneous equations (1a) y = x y = 1.1x – 0.2 and (1b) y = x […]
Find values of x and y for which these five expressions all have the same value.
Do you have exactly the right amount of information or more information than you need?
Click here to download the MATCHLESS worksheet.
Click here to download the MATCHLESS worksheet.
Click here to download the AIMSSEC […]
Starting with real experiences like guessing the numbers on two cards from clues such as “the numbers add up to 20 and one number is three times the other number” learners progess to illustrating the clues by drawing straight line graphs, writing down simultaneous equations and learning formal algebraic methods to solve […]
What is the area, (in square units) of the triangle formed by the three lines whose equations are: y − x = 6, x − 2y = 3 and x + y = 6?
Lick here to download the GRAPHICAL TRIANGLE worksheet
Click here for the Notes for Teachers.
This […]
Add up these 3 equations. What do you notice?
Find the values of x, y and z.
Now add up all 5 equations given below. What do you notice?
b + c + d + e = 4
a + c + d + e = 5
a + […]
A triangle has sides 12, 13 and 15 units. Circles are drawn with centres at the vertices of the triangle so that each circle touches the other two.
Find the radii of the circles.
Can you always find touching circles for any triangle?
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