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Sgilean ailseabrachCo-aontar loidhne dhìreach

'S e foirmle sa bheil co-dhiù aon chaochladair a th' ann an co-aontar. Tha grunn sheòrsachan ann: co-aontar loidhne dhìreach, ailseabrach, co-amail is far am feum cuspair an fhoirmle atharrachadh.

Part of MatamataigAilseabra

Co-aontar loidhne dhìreach

'S e an co-aontar coitcheann aig loidhne dhìreach:

\(y = mx + c\)

far an e m an agus c an (far a bheil an loidhne dhìreach a' gearradh a' y-axis).

Eisimpleir

Obraich a-mach an caisead agus an trasnadh-y airson na loidhne dhìrich leis a' cho-aontar \(y = 5x + 7\)

Freagairt

\(m=5\)

\(c=7\) mar sin 's e an trasnadh-y (0, 7)

Feuch na ceistean seo

Question

Obraich a-mach an caisead agus an trasnadh-y airson na loidhne dhìrich leis a' cho-aontar \(y = 2x + 3\)

Question

Obraich a-mach an caisead agus an trasnadh-y airson na loidhne dhìrich leis a' cho-aontar \(y = 8x - 4\)

Question

Obraich a-mach co-aontar na loidhne dhìrich gu h-ìosal.

Straight line graph cutting through 3 on the y axis and 6 on the x axis

Question

Obraich a-mach co-aontar na loidhne dhìrich gu h-ìosal.

Straight line intercept diagram

Question

Dè na loidhneachan san diagram gu h-àrd a tha còmhnard, agus dè an fheadhainn a tha bheartagail?

\(y = 6\)

\(x= 3\)

\(x = -4\)

\(y = -8\)

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