Algebra Facts Flashcards
What is the gradient of the line y = 3x + 2?
3
What is the intercept of the line y = 3x + 2?
(0,2)
The intercept is where the line crosses the y-axis
What is the gradient of the line y = 4x + 7?
4
What is the intercept of the line y = 4x + 7?
(0,7)
The intercept is where the line crosses the y-axis
What is the gradient of the line y = 8 - 2x?
-2
It is important that you include the minus sign in front of the 2!
What is the intercept of the line y = 8 - 2x?
(0,8)
The intercept is where the line crosses the y-axis
What is the intercept of the line y = -x - 0.5?
(0, -0.5)
The intercept is where the line crosses the y-axis
What is the gradient of the line y = -x - 0.5?
-1
Solve this equation: 4x=28
X=7
Expand these brackets 5(x+3)
5x+15
Expand these brackets 6(3-x)
18-6x
Expand these brackets 7(3x-5)
21x-35
Expand these brackets 8a(5-2b)
40a-16ab
Expand these brackets x(3-x)
3x - x^2
Expand these brackets (x+2)(x+3)
x^2 + 5x + 6
