Algebra
Expand
3(2x + 4)
6x + 12
What is the definition of gradient?
The steepness of a line
Simplify this ratio 8:20
2:5
11 - x = 4
x = 7
Find 25% of 64
16
Factorise
4x + 8
4(x + 2)
What is the gradient of this line?
y= 2x + 4
2
Simplify the ratio
12:24:33
4:6:11
2x = 15
x= 7.5
Find 30% of 120
36
Expand and simplify
2(3x + 4) + 3x
9x + 8
What is the y-intercept of this line?
y= 5x - 3
-3
Share £250 in the ratio 8:2
£200:£50
4x + 5 = 29
x= 6
Reduce 50 by 20%
40
Factorise
8x + 20x
4x(2 + 5)
Write the equation for a line with a gradient of 2 and a y-intercept of 1
y= 2x - 1
Share 45 in the ratio 3:5:7
9:15:21
2(3x + 2) = 22
x= 3
Increase 45 by 40%
63
Expand and simplify
(x+3)(x+7)
x2 + 10x + 21
Write the equation for a line with a gradient on -2 and a y-intercept of -1
y= -2x - 1
Share 750 in the ratio 4:8:3
200:400:150
3(2.5x - 3) = 21
x= 3
Find 64% of 300
192