C1 - Coordinate Geometry

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  • Created by: jackjj9
  • Created on: 24-09-16 15:49
What is the formula to find the gradient when given 2 points?
m = (y2-y1)/(x2-x1)
1 of 17
What is the formula to find the equation of a line when given the gradient and a point?
y-y1 = m(x-x1)
2 of 17
What is the formula used to find the equation of line when given 2 points
(y-y1)/(y2-y1) = (x-x1)/(x2-x1)
3 of 17
What does m1*m2 equal when lines are perpendicular?
-1
4 of 17
True or false, the gradients of 2 lines are equal when they are parallel?
True
5 of 17
What is the formula for distance between 2 points? (kinda C2 but often comes up in C1)
d= root[(x2-x1)^2+(y2-y1)^2]
6 of 17
What can you also use to find the gradient of a perpendicular line?
The negative reciprocal
7 of 17
Is y=4 a horizontal or vertical line?
Horizontal
8 of 17
How do you find where 2 lines intersect?
Solve the equations simultaneously
9 of 17
How do find the x-intercept?
Substitute in y=0
10 of 17
How do you find the y-intercept?
Substitute in x=0
11 of 17
What is general form?
ax+by+c=0 where a, b and c are integers.
12 of 17
A(9,4) and B(3,2). Equation in general form?
x-3y+3=0
13 of 17
What is the gradient of y=3x+7?
3
14 of 17
What is the gradient of the line joining, A(3, 9) and B(6, 12)
1
15 of 17
What is standard form?
y = mx+c
16 of 17
What is the equation of a line with gradient 1/2 passing through the point (4, 6)?
y = 1/2x + 4
17 of 17

Other cards in this set

Card 2

Front

What is the formula to find the equation of a line when given the gradient and a point?

Back

y-y1 = m(x-x1)

Card 3

Front

What is the formula used to find the equation of line when given 2 points

Back

Preview of the front of card 3

Card 4

Front

What does m1*m2 equal when lines are perpendicular?

Back

Preview of the front of card 4

Card 5

Front

True or false, the gradients of 2 lines are equal when they are parallel?

Back

Preview of the front of card 5
View more cards

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