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.