# Core 1 Formulae

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- Created by: Harraseda
- Created on: 17-05-16 17:33

## Other questions in this quiz

## 2. Length of a line from two points

- (y2-y1)/(x2-x1)
- (y-y1)=m(x-x1)
- Square Root of: (x2-x1)^2 + (y2-y1)^2
- [(x2-x1)^2 + (y2-y1)^2]^2

## 3. Gradient of a line

- (y-y1)=m(x-x1)
- (x2-x1)/2 , (y2-y1)/2
- (y2-y1)/(x2-x1)
- (x2-x1)/(y2-y1)

## 4. What is the discriminant?

- Square Root of: b^2-(4ac)
- -b+(4ac)/2a
- b^2-(4ac)
- 2a-4bc

## 5. Midpoint of two points

- (x2-x1)/(y2-y1)
- (y2-y1)/(x2-x1)
- (x2-x1)/2 , (y2-y1)/2
- (y-y1)=m(x-x1)

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