Term
| Distance formula (for finding the distance between two points) |
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Definition
P1P2 = √(x2 - x1)^2 + (y2 - y1)^2
Also known as.. Pythagoras' Theorem |
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Term
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Definition
| P1P2 = (x1 +x2/2 , y1 + y2/2) |
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Term
Gradient/slope formula
(when you have two points on the line) |
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Definition
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Term
| Which pronumeral stand for gradient? |
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Definition
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Term
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Definition
y = mx + c
where m = gradient, c = y-intercept |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Difference of y coordinates/difference of x coordinates |
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Term
What happens when the gradient...
>0 ?
<0 ?
= 0 ?
undefined ? |
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Definition
When the gradient is..
>0, the line rises to the right (goes uphill)
<0, the line falls to the right (goes downhill)
= 0, the line is horizontal (flat)
undefined, the line is vertical (goes up and down) |
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