Jawabanmu

2014-05-21T16:38:26+07:00
Y = x² - 2x + 1
m1 = 2x - 2
y = 4x
m2 = 4
m1 = m2 = 4
2x - 2 = 4
2x = 6
x = 3
y = 3² - 2(3) + 1 = 9 - 6 + 1 = 4
Persamaan grs singgung melalui titik (3,4) dan m = 4
y-y1 = m(x-x1)
y - 4 = 4(x-3)
y = 4x - 12 + 4
y = 4x - 8