Plotting a relationship | Maths | Quizalize & Oak National Academy

Starter quiz

Write the coordinate of the point plotted on the graph shown

'(-1.5,-2.5)' ✓
Which of these follow the rule $y=8$ ?

(-8,8) ✓

(-8,-8)

(8,0)

(1.02,8) ✓

(-5.6, 8.1)
To __________ is to put in place of another. In algebra this can mean replacing variables with values.

change

generalise

plot

substitute ✓

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

(3,____)

⇔

-12 ✓

(-3,____)

⇔

12 ✓

(____,0)

⇔

0 ✓

(1,____)

⇔

-4 ✓

(____, -16)

⇔

4 ✓

(____,4)

⇔

-1 ✓
What is the value of the expression $2x+5$ when $x=7$ ?

'19' ✓
What is the value of the expression $10-5x$ when $x=-3$

'25' ✓

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

'2' ✓
Which of these is the correct way to draw the line of the rule $y=2$ ?
True or false: The coordinate (5,9) will lie on the line $y=x+4$

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

(3,6)

⇔

$y=x+3$ ✓

(-3,6)

⇔

$y=-2x$ ✓

(5,10)

⇔

$y=3x-5$ ✓

(2,7)

⇔

$y=5x-3$ ✓
Fill in the missing $y$ coordinate so this coordinate lies on the line $y={1\over 2}x+4$ (8, ______)

'8' ✓
Fill in the missing $y$ coordinate so this coordinate lies on the line $y=-7x-15$ (-3, ______)

'6' ✓

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Pupils may join up their coordinates but not extend their line.

Lines are used to represent all coordinates that follow a rule. Unless given restrictions, lines should be infinitely long.

Substitution - Substitute means to put in place of another. In Algebra, substitution can be used to replace variables with values.
Integer - An integer is any positive or negative whole number or zero.