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Berpktongan dengan sumbu x (y=0)
3x + 4(0) = 24
3x = 24
x = 8
Jadi titik potongnya (8,0)
Persamaan lingkaran
x^2 + y^2 = r^2
Subtitusi titik (8,0)
64 + 0 = r^2
r^2 = 64
r = 8
Jadi
x^2 + y^2 = 8^2
x^2 + y^2 = 64
3x = 24
x = 8
titik potong (x,y)= (8,0)
r = jarak pusat ke (8,0) = 8
pers ling pusat (0,0), dng r = 8
x² + y² = r² --> x² + y² = 64