Start with S
Two or more equations that share variables.
Simultaneouos Equations
r + s = -6
r - s = -10
r=-8,
s=2
Two numbers have a sum of 20 and a difference of 8
x+y=20
x-y=8
x = 4y
2x + 3y = 22
x=8,
y=2
To make larger.
Enlarge
To find a value (or values) we can put in place of a variable that makes the equation true.
Solve
8a + 5b = 9
2a - 5b = -4
a=0.5,
b=1
100 tickets were sold for the school talent show. x £2 tickets and y £5 tickets were sold. £260 was collected in ticket sales.
x+y=100
2x+5y=260
y = x - 2
3x - y = 16
x=y,
y=5
__________ is when we multiply to remove the ( )
Expand
When one shape can become another after a resize, flip, slide or turn.
Similar
2x + 3y = 6
3x + 5y = 15
x=-15,
y=12
Jason and Alex have £5 between them. Jason has 90p more than Alex.
J+A=5
J-A=0.9
y = 3x - 1
7x + 2y = 37
x=3,
y=8
A triangle with all three sides of equal length.
Equilateral triangle
A graph of plotted points that show the relationship between two sets of data.
Scatter graph / plots
2a - 4b = 12
-8a + 16b = -48
infinitely many solutions
There are 12 goals in a football match between Y10 and Y11. Y10 score 4 more than Y11.
T+E=12
T-E=4
3s - 2t = 4
t = 2s - 1
x=-2,
y=-5
The same distance (from each other, or in relation to other things).
Equidistant
A "pie-slice" part of a circle - the area between two radiuses and the connecting arc of a circle
Sector
(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4
x=24,
y=8
There are two brothers: Adam and Ben. If I square Adams’s age, then I get Ben’s age. In three years, Adam will be half Ben’s age.
A2=B
A+3=B/2
t + u = 12
t = (1/3)u
x=3,
y=9
The ____________ of a number says how many times to use that number in a multiplication
exponent