Straight line graphs Flashcards

1
Q

straight line graph equation

A

y=mx+c

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2
Q

y

A

altitude, y axis

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3
Q

m

A

gradient of line, up is positive, down is negative

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4
Q

x

A

on x axis, multiply to gradient

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5
Q

c

A

where line intercepts

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6
Q

how to work out gradient

A

change in y/change in x, go up and along using triangle method

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7
Q

what is x if altitude (y) starts at 200m

A

0

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8
Q

example of a slope

A

y (altitude)= 0.3 (gradient) x horizontal distance (x) + 200m (altitude)

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9
Q

what happens if you go down slope 50m

A

0.3 x -50 + 200m

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