fungsi titik balik p(46) melalui titik a(2,10)

jawab


P (4, 6)  --> y = a(x - 4)² + 6
A (2,10) --> 10 = a(2-4)² + 6
10 = 4a + 6
a = 1

y = 1(x - 4)² + 6
y = x² -8x + 16 + 6
y = x² - 8x + 22