Question

Penyelesaian dari persamaan
y=x²-2x+4
y-x=4

Answer 1

X=0
y=0-0+4=4
4-x=4
x=0
(0,4)

Answer 2

Y1 = y2
x^2 - 2x + 4 = x + 4
x^2 -3x = 0
x ( x -3) = 0
x = 0 atau x = 3

unt x = 0
y - x = 4
y - 0 = 4
y = 4

unt x = 3
y - x = 4
y - 3 = 4
y = 4+3
y = 7

hp = { (0,4) , (3,7) }