LQ in 2 variables

[charred spruce]

A guy charges 10$ for the 1st kilometer and then charges 4$ for the rest subsequent distances. Make a Lq in 2 variables to satisfy the statement

[clever crystal]

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[sinful quiver]

C=4d+6?

C is total cost and d subsequent distances

[clever crystal]

@charred spruce

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[charred spruce]

oh

Can't we take 4d + 10

[dull nimbus]

No, then you'd have to minus 4

The reason why we take six is that ideally, whatever equation we have must give us 10 dollars if we input d as 0 (i.e. only i km)

And if you take it as 4d+ 10, you'd have 14, not 10, if they go one km

By removing the four from ten, you remove the extra 4 that you add when you put in values