Substitute means to put in place of another.  In Algebra, substitution can be used to replace variables with values.

An integer is any positive or negative whole number or zero.

Plotting a relationship

Maths

In this unit, pupils extend their knowledge of plotting coordinates from KS2 by now plotting non-integer values. Pupils learn that a set of points can satisfy a relationship and this understanding is built on in the sequences unit

In this unit, pupils learnt how to plot coordinates in all four quadrants via plotting positions and then shapes

Plotting coordinates

What is the minimum number of coordinates you need to plot to draw a straight line?

Which of these is the correct way to draw the line of the rule $$y=2$$?

True- The $$y$$ coordinate equals the $$x$$ coordinate plus 4

False- The $$x$$ coordinate equals the $$y$$ coordinate plus 4

There is no way of knowing without drawing the line

True or false: The coordinate (5,9) will lie on the line $$y=x+4$$

Match the coordinate with the equation for the line it will lie on

Fill in the missing $$y$$ coordinate so this coordinate lies on the line $$y={1\over 2}x+4$$  (8, {{}})

Fill in the missing $$y$$ coordinate so this coordinate lies on the line $$y=-7x-15$$  (-3, {{}})

Write the coordinate of the point plotted on the graph shown 

To __________ is to put in place of another. In algebra this can mean replacing variables with values.

Match the coordinate with the missing value so that each coordinate satisfies the rule $$y=-4x$$

What is the value of the expression $$2x+5$$ when $$x=7$$?

What is the value of the expression $$10-5x$$ when $$x=-3$$

This lesson will soon be taken down.

Plotting a relationship

Lesson outcome