$4.83: The cost to impact the life of a child for a year… maybe forever.

$4.83: The cost to impact the life of a child for a year… maybe forever.

Matematika 1. Garis y= 3x² -4x+5 ditranslasikan oleh T: (-3 4). Tentukan bayangan garis tersebut!​

1. Garis y= 3x² -4x+5 ditranslasikan oleh T: (-3 4). Tentukan bayangan garis tersebut!​

Jawaban:

x' = x-3 <=> x = x'+3

y' = y+4 <=> y = y'-4

substitusi ke persamaan garis:

y'-4 = 3(x'+3)² - 4(x'+3) + 5

y'-4 = 3x'²+18x'+27 - 4x'-12 + 5

y' = 3x'²+14x'+36

y = 3x²+14x+36