y = 6000 + ( a - 1 ) \times 6000 \times 25 \%
Whakaoti mō a
a=\frac{y-4500}{1500}
Whakaoti mō y
y=1500\left(a+3\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
y=6000+\left(a-1\right)\times 6000\times \frac{1}{4}
Whakahekea te hautanga \frac{25}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.
y=6000+\left(a-1\right)\times 1500
Whakareatia te 6000 ki te \frac{1}{4}, ka 1500.
y=6000+1500a-1500
Whakamahia te āhuatanga tohatoha hei whakarea te a-1 ki te 1500.
y=4500+1500a
Tangohia te 1500 i te 6000, ka 4500.
4500+1500a=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
1500a=y-4500
Tangohia te 4500 mai i ngā taha e rua.
\frac{1500a}{1500}=\frac{y-4500}{1500}
Whakawehea ngā taha e rua ki te 1500.
a=\frac{y-4500}{1500}
Mā te whakawehe ki te 1500 ka wetekia te whakareanga ki te 1500.
a=\frac{y}{1500}-3
Whakawehe y-4500 ki te 1500.
y=6000+\left(a-1\right)\times 6000\times \frac{1}{4}
Whakahekea te hautanga \frac{25}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.
y=6000+\left(a-1\right)\times 1500
Whakareatia te 6000 ki te \frac{1}{4}, ka 1500.
y=6000+1500a-1500
Whakamahia te āhuatanga tohatoha hei whakarea te a-1 ki te 1500.
y=4500+1500a
Tangohia te 1500 i te 6000, ka 4500.
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